///////////////TOMORROW FUNCTION////////////////////
//gets current URL of mainFrame frame's document, parses it, 
//increments it and turns it back into a URL string
////////////////////////////////////////////////////
function tomorrow(){
	var address = ""+top.mainFrame.location; 	//URL of frame named "mainFrame"
	//alert(address);
	var charNum = address.length;
		
	/////////pulls out URL substring preceding and following date component of file name
	var lastSlash  = slashFinder(address, charNum);
	var lastDot = dotFinder(address, charNum);
	var prefixURL = address.substring(0, (lastSlash+1));  //gets URL before date
	var suffixURL = address.substring(lastDot, address.length);    //gets HTML file suffixURL

	////////gets year/month/year
	var year =  eval(address.substring(( lastSlash + 1), ( lastSlash + 5)));
	var month =  eval(address.substring((lastSlash + 5), (lastSlash + 7)));
	var day = eval(address.substring((lastSlash + 7), (lastDot)));
	

	////////calls functions which make changes to date components and returns them as strings
	var nYear = nYearPlus(day, month, year);
	var nMonth = nMonthPlus(day, month, year);
	var nDay = nDayPlus(day, month);

	///////puts new URL back together
	var nextDay = nYear + nMonth + nDay;
	var newURL = prefixURL+nextDay+suffixURL;	
	
	//alert("tomorrow"+newURL);
	//alert(suffixURL);
	//document.open(newURL);

	//return(newURL);

	top.mainFrame.location = newURL;	//targets 'mainFrame' frame with following day's URL.
	
	dateit(nDay, nMonth, nYear);//calls function which changes date display gifs
}
/////////////////////////////////////////////////////


//////////////////////////////////////////////////////////
//URL parsing functions
//////////////////////////////////////////////////////////
function slashFinder(addr, cNum){		//finds position of last "/" in URL
	var slash;
		for(i = 1; i<= cNum; i++){
			if (addr.charAt(i) == "/"){
				slash = i+1;	//i+1 allows for 'b', 'c' or 'h'	
			}		
		}
	//alert(addr.charAt(slash));	
	return slash;
}


function dotFinder(addr, cNum){	//finds the position of "." before the "suffixURL" suffixURL
	var dot;
		for(i = 1; i<= cNum; i++){
			if (addr.charAt(i) == "."){
				dot = i;
			}
		}	
	return dot;
}
///////////////////////////////////////////////////////////

//////////////////////////////////////////////////////////
//functions to make year and month and day changes
/////////////////////////////////////////////////////////

/////////YEAR/////////////////////
function nYearPlus(dy, mnth, yr){
	if (mnth == 12)
	{		
		if (dy == 31)
			yr = yr + 1;
	}
	var yrStr = "" + yr
	return yrStr;
}

//////////MONTH/////////////////
function nMonthPlus(dy, mnth, yr){
	//APRIL/JUNE/SEPT/NOV
	if (mnth== 4||mnth==6||mnth==9||mnth==11 )
	{
		if (dy == 30)
			mnth = mnth + 1;
	}
	
	//JAN/MAR/MAY//JUL/AUG/OCT
	if(mnth == 1||mnth==3||mnth==5||mnth==7||mnth==8||mnth==10)
	{		
		if(dy == 31)
			mnth = mnth + 1;
	}
	
	if(mnth == 2)//FEBRUARY
	{
		if(yr%4 == 0)
		{
			if(dy == 29)
				mnth = mnth + 1;
		}
		else
		{
			if(dy == 28)
				mnth = mnth + 1;
		}
	}
	
	if(mnth == 12)//DECEMBER
	{
		if(dy == 31)
			mnth = 1;
	}
	
	var mnthStr; 
	if(mnth < 10)
		mnthStr="0"+mnth;
	else
		mnthStr = ""+mnth;

	return mnthStr;
}

/////////DAY///////////////
function nDayPlus(dy, mnth){
	 //APRIL/JUNE/SEPT/NOV
	if (mnth== 4||mnth==6||mnth==9||mnth==11 )
	{
		if (dy == 30)
			dy = 1;
		else 
			dy =1+dy;	
	}
	
	//JAN/MAR/MAY//JUL/AUG/OCT/DEC
	if(mnth == 1||mnth==3||mnth==5||mnth==7||mnth==8||mnth==10||mnth==12)
	{	
		if(dy == 31)
			dy = 1;
		else 
			dy = dy + 1;
	}

	if(mnth == 2)//FEBRUARY
	{
		if(yr%4 == 0)
		{
			if(dy == 29)
				dy = 1;
			else 
				dy = dy + 1;
		}
		else
		{
			if(dy == 28)
				dy = 1;
			else 
				dy = dy + 1;
		}
	}	

	var dyStr;
		if(dy < 10)
			dyStr = "0" + dy;
		else
			dyStr = "" + dy;
		
	return dyStr;
}
/////////////////////////////////////////////////////////////////////////



//____________________________________________________________________//____________________________________________________________________


////////////////////YESTERDAY FUNCTION///////////////
//gets current URL of mainFrame frame's document, parses it, 
//decrements it and turns it back into a URL string
////////////////////////////////////////////////////
////////////////////////////////////////////////////
function yesterday(){
	var address = ""+top.mainFrame.location; 	//URL of frame named "mainFrame"
	//alert("yesterday = "+address);
	var charNum = address.length;
		
	/////////pulls out URL substring preceding and following date component of file name
	var lastSlash  = slashFinder(address, charNum);
	var lastDot = dotFinder(address, charNum);
	var prefixURL = address.substring(0, (lastSlash+1));  //gets URL before date
	var suffixURL = address.substring(lastDot, address.length);    //gets HTML file suffixURL

	////////gets year/month/year
	var year =  eval(address.substring(( lastSlash + 1), ( lastSlash + 5)));
	var month =  eval(address.substring((lastSlash + 5), (lastSlash + 7)));
	var daydate = address.substring((lastSlash + 7), (lastDot));
	var day = eval(address.substring((lastSlash + 7), (lastDot)));
	//alert(year+""+month+""+day)
		
	////////calls functions which make changes to date components and returns them as strings
	var xYear = xYearMinus(day, month, year);
	var xMonth = xMonthMinus(day, month, year);
	var xDay = xDayMinus(day, month);

	///////puts new URL back together
	var yesterDay = xYear + xMonth + xDay;
	var newURL = prefixURL+yesterDay +suffixURL;	
	
	//alert("yesteday"+newURL);
	//alert(suffixURL);
	//document.open(newURL);

	//return(newURL);
	top.mainFrame.location = newURL;	//targets 'mainFrame' frame with preceeding day's URL.
	
	dateit(xDay, xMonth, xYear);//calls function which changes date display gifs
}
/////////////////////////////////////////////////////




//////////////////////////////////////////////////////////
//functions to make year and month and day changes for YESTERDAYS
/////////////////////////////////////////////////////////

/////////YEAR--/////////////////////
function xYearMinus(dy, mnth, yr){
	if (mnth == 1)
	{		
		if (dy == 1)
			yr = yr - 1;
	}
	var yrStr = "" + yr
	//alert("yrStr"+yrStr);
	return (yrStr);
}

//////////MONTH--/////////////////
function xMonthMinus(dy, mnth, yr){
	if (dy == 1)
		if(mnth != 1)
			mnth = mnth - 1;
		else
			mnth = 12
	var mnthStr; 
	if(mnth < 10)
		mnthStr="0"+mnth;
	else
		mnthStr = ""+mnth;
	
	//alert("mnthStr"+mnthStr);
	return (mnthStr);
}

/////////DAY--///////////////
function xDayMinus(dy, mnth){
	 //MAY/JULY/OCT/DEC
	if (mnth== 5||mnth==7||mnth==10||mnth==12 )
	{
		if (dy == 1)
			dy = 30;
		else
		dy = dy-1;	
	}
	
	//JAN/FEB/APRIL//JUNE/AUG/SEPT/NOV
	if(mnth == 1||mnth==2||mnth==4||mnth==6||mnth==9||mnth==11)
	{	
		if(dy == 1)
			dy = 31;
		else
			dy = dy-1;
	}

	if(mnth == 3)//MARCH
	{
		if(yr%4 == 1)
		{
			if(dy == 1)
				dy = 29;
			else
				dy = dy-1;
		}
		else
		{
			if(dy == 1)
				dy = 28;
			else
				dy = dy-1;
		}
	}	

	var dyStr;
		if(dy < 10)
			dyStr = "0" + dy;
		else
			dyStr = "" + dy;
		
	//alert("dyStr"+dyStr);
	return (dyStr);
}
/////////////////////////////////////////////////////////////////////////

/////////////////////////////////////////////////////////////////////////
//FUNCTIONS TO JUMP BETWEEN THE THREE MAINFRAME ENTRIES FOR THE SAME DAY
/////////////////////////////////////////////////////////////////////////

function cookit(){
	var address = ""+top.mainFrame.location; 	//URL of frame named "mainFrame"
	var charNum = address.length;
		
	/////////pulls out URL substring preceding and following date component of file name
	var charPos  = slashFinder(address, charNum);
	var prefixURL = address.substring(0, (charPos ));  //gets URL before date
	var suffixURL = address.substring(charPos +1, address.length); //gets HTML file 											suffixURL

	///////puts new URL back together
	var cooksURL = prefixURL+"c" +suffixURL;	
	
	top.mainFrame.location = cooksURL;	//targets 'mainFrame' frame with cook's mainFrame's URL.
		
	//changes imgs for authors names in authors menu, highlighting one and lowlighting other 	//two
	//parent.jrnTop.document.images[0].src = 'interface_grfx/cook.gif';
	top.headerFrame.document.images[0].src = 'interface_grfx/cook.gif';

}


function bankit(){
	var address = ""+top.mainFrame.location; 	//URL of frame named "mainFrame"
	var charNum = address.length;
		
	/////////pulls out URL substring preceding and following date component of file name
	var charPos  = slashFinder(address, charNum);
	var prefixURL = address.substring(0, (charPos ));  //gets URL before date
	var suffixURL = address.substring(charPos +1, address.length); //gets HTML file 											suffixURL

	///////puts new URL back together
	var banksURL = prefixURL+"b" +suffixURL;	
	
	top.mainFrame.location = banksURL;	//targets 'mainFrame' frame with banks' mainFrame's URL.
	
	//changes imgs for authors names in authors menu, highlighting one and lowlighting other 	//two
	//parent.jrnTop.document.images[0].src = 'interface_grfx/banks.gif';
	top.headerFrame.document.images[0].src = 'interface_grfx/banks.gif';

}


function hawkit(){
	var address = ""+top.mainFrame.location; 	//URL of frame named "bodyFrame"
	var charNum = address.length;
		
	/////////pulls out URL substring preceding and following date component of file name
	var charPos  = slashFinder(address, charNum);
	var prefixURL = address.substring(0, (charPos ));  //gets URL before date
	var suffixURL = address.substring(charPos +1, address.length); //gets HTML file 											suffixURL

	///////puts new URL back together
	var hawksURL = prefixURL+"h" +suffixURL;	
	
	top.mainFrame.location = hawksURL;//targets 'mainFrame' frame with hawkes' mainFrame's URL.
		
	//changes imgs for authors names in authors menu, highlighting one and lowlighting other 	//two
	//parent.jrnTop.document.images[0].src = 'interface_grfx/hawks.gif';
	top.headerFrame.document.images[0].src = 'interface_grfx/hawks.gif';
}


/////////////////////////////////////////////////////////////////////////
//INTERFACE FUNCTIONS
/////////////////////////////////////////////////////////////////////////

///////////function to change the gifs which show the journal entry date when stepping thru day-by-day
function dateit(dy,mnth,yr){
	
	var year = parseInt(yr);
	var month =(mnth);
	var day1 = parseInt(dy.charAt(0));
	var day2 = parseInt(dy.charAt(1)); 


	//alert("day2=",day2);
	//parent.jrnTop.document.images[4].src = 'interface_grfx/y'+ year + '.gif';
	document.images[4].src = 'interface_grfx/y'+ year + '.gif';
	

	if (day1 != 0){
		document.images[1].src = 'interface_grfx/d' + eval(day1) + '.gif';
	}else document.images[1].src = 'interface_grfx/blank.gif';
	
	document.images[2].src = 'interface_grfx/d' + eval(day2) + '.gif';
	
	if (month == 1){
		document.images[3].src = 'interface_grfx/jan.gif';
	}else if (month == 2){
		document.images[3].src = 'interface_grfx/feb.gif';
	}else if (month == 3){
		document.images[3].src = 'interface_grfx/mar.gif';
	}else if (month == 4){
		document.images[3].src = 'interface_grfx/apr.gif';
	}else if (month == 5){
		document.images[3].src = 'interface_grfx/may.gif';
	}else if (month == 6){
		document.images[3].src = 'interface_grfx/jun.gif';
	}else if (month == 7){
		document.images[3].src = 'interface_grfx/jul.gif';
	}else if (month == 8){
		document.images[3].src = 'interface_grfx/aug.gif';
	}else if (month == 9){
		document.images[3].src = 'interface_grfx/sep.gif';
	}else if (month == 10){
		document.images[3].src = 'interface_grfx/oct.gif';
	}else if (month == 11){
		document.images[3].src = 'interface_grfx/nov.gif';
	}else if (month == 12){
		document.images[3].src = 'interface_grfx/dec.gif';
	}	
	
}



/////////////////////////////////////////////////////////////////////////
//FUNCTION TO LOAD APPROPRIATE MAINFRAME FILE INTO "mainFrame"FRAME
/////////////////////////////////////////////////////////////////////////

function datePasser(file){

	mainFrameFile ="../text/"+file+".html";
	parent.headerFrame.location="../interface/jrnHeader.html"
	parent.mainFrame.location=mainFrameFile;
	//parent.headerFrame.location="../interface/jrnTopFSet.html";

}




function dateFSetCaller(){

	//parent.headerFrame.location="jnrHeader.html";
	parent.headerFrame.location="dateTopmenu.html";
	parent.mainFrame.location="calendars/176904.html";
}


////////////////////////////////////////////////////////////
//function to display the correct authors name when a journal page is first displayed
////////////////////////////////////////////////////////////

function displayAuthorName(){

	var address = ""+top.mainFrame.location; 	//URL of frame named "bodyFrame"
	var charNum = address.length;

	//finds out if the mainFrame file is a jrn file by looking for '17' as the century part of the jrn date
	// if it finds a '17' the rest of this function is carried out
	var lastSlash  = slashFinder(address, charNum);
	var charPos  = slashFinder(address, charNum);
	var century = ""+(address.substring(( lastSlash + 1), ( lastSlash + 3)));
	
	var firstLetter = ""+ address.charAt(charPos);  //gets letter at start of journal page filename
	var year = (address.substring(( lastSlash + 1), ( lastSlash + 5)));
	var month = (address.substring((lastSlash + 5), (lastSlash + 7)));
	var day1 = (address.charAt((lastSlash + 7)));
	var day2 = (address.charAt((lastSlash + 8)));
	
	
	if (century == "17"){
			
		/////////pulls out URL substring preceding and following date component of file name
		
		if (firstLetter=="b"){
			document.images[0].src = 'interface_grfx/banks.gif';
		}else if (firstLetter=="c"){
			document.images[0].src = 'interface_grfx/cook.gif';
		}else if (firstLetter=="h"){
			document.images[0].src = 'interface_grfx/hawks.gif';
		}
	

		if (day1 != 0){
		document.images[1].src = 'interface_grfx/d' + eval(day1) + '.gif';
		}
		document.images[2].src = 'interface_grfx/d' + eval(day2) + '.gif';
	
		if (month == 1){
			document.images[3].src = 'interface_grfx/jan.gif';
		}else if (month == 2){
		document.images[3].src = 'interface_grfx/feb.gif';
		}else if (month == 3){
		document.images[3].src = 'interface_grfx/mar.gif';
		}else if (month == 4){
		document.images[3].src = 'interface_grfx/apr.gif';
		}else if (month == 5){
		document.images[3].src = 'interface_grfx/may.gif';
		}else if (month == 6){
		document.images[3].src = 'interface_grfx/jun.gif';
		}else if (month == 7){
		document.images[3].src = 'interface_grfx/jul.gif';
		}else if (month == 8){
		document.images[3].src = 'interface_grfx/aug.gif';
		}else if (month == 9){
		document.images[3].src = 'interface_grfx/sep.gif';
		}else if (month == 10){
		document.images[3].src = 'interface_grfx/oct.gif';
		}else if (month == 11){
		document.images[3].src = 'interface_grfx/nov.gif';
		}else if (month == 12){
		document.images[3].src = 'interface_grfx/dec.gif';
		}	
	
		document.images[4].src = 'interface_grfx/y'+ year + '.gif';
	}else {
	

		var MFaddress = ""+top.mainFrame.location; 	//URL of frame named "bodyFrame"
		var MFcharNum = MFaddress.length;
		var charPos  = slashFinder(MFaddress, MFcharNum);
		var isStage = MFaddress.substring(charPos, (charPos +5));  ///if stage file is loaded this'll = 'stage'
		var stageNum =MFaddress.charAt(charPos+5);
		var prefixURL = MFaddress.substring(0, (charPos));
		var suffixURL = MFaddress.substring((charPos +6), (MFcharNum));
	
		//alert(stageNum);
		
	
		if (isStage  == "stage"){
			top.headerFrame.document.location =prefixURL+""+isStage+""+stageNum+"title"+suffixURL;
			alert(prefixURL+""+isStage+""+stageNum+"title"+suffixURL);
		}
	}
}
	

////////////////////////////////////////////////////////////
//Variation on function above to display author's name when going to a journal page from
//a voyage stage listing. This goes into 'onLoad' of jrnTop frame.
////////////////////////////////////////////////////////////

function whichAuthorName(){

	var address = ""+top.mainFrame.location; 	//URL of frame named "bodyFrame"
	var charNum = address.length;

	/////////pulls out URL substring preceding and following date component of file name
	var charPos  = slashFinder(address, charNum);
	var firstLetter = ""+ address.charAt(charPos);  //gets letter at start of journal page filename
	
	
	if (firstLetter=="b"){
			document.images[0].src = 'interface_grfx/banks.gif';
	}else if (firstLetter=="c"){
			document.images[0].src = 'interface_grfx/cook.gif';
	}else if (firstLetter=="h"){
			document.images[0].src = 'interface_grfx/hawks.gif';
	}
}



////////////////////////////////////////////////////////////
//function to make sure dateMenu is loaded in "headerFrame" 
//when a month file is loaded in "mainFrame"
// - goes into onLoad of month files
///////////////////////////////////////////////////////////

function whatsInMainFrame(){

	/////////pulls out URL substring preceding headerFrame file name
	/////////to check whether the journal header frameset is loaded in headerFrame
	var headerURL = ""+top.headerFrame.document.location;
	var charNum = headerURL.length;
	var lastSlash  = slashFinder(headerURL, charNum);
	
	
	var MFaddress = ""+top.mainFrame.location; 	//URL of frame named "bodyFrame"
	var MFcharNum = MFaddress.length;
	var charPos  = slashFinder(MFaddress, MFcharNum);
	var isStage = MFaddress.substring(charPos, (charPos +5));  ///if stage file is loaded this'll = 'stage'
	var prefixURL = MFaddress.substring(0, (charPos));
	var suffixURL = MFaddress.substring((charPos +5), (MFcharNum));
	
	
	if (isStage  == "stage"){

		if (""+top.headerFrame.document.location == prefixURL+"stage"+suffixURL){
			top.headerFrame.document.location =prefixURL+""+isStage+""+suffixURL;
		}
	}
	
	var is17 = MFaddress.substring((charPos+1), (charPos +3));  ///if jrn file is loaded this'll = '17'
	
	if (is17 =="17"){
		top.headerFrame.document.location = "../interface/jrnHeader.html";
	}
}




////////////////////////////////////////////////////////////////////////////////////
////THIS GOES ON EACH JOURNAL PAGE FILE - IT'S TO UPDATE THE HEADER FRAME IF THE 
////BROWSER'S BACK OR FORWARD BUTTONS CHANGE CONTENT OF THE MAINFRAME
////
////---NB!!: ALL INTERFACE FRAME FILES NEED TO BE IN THE ONE "INTERRACE" DIRECTORY---
////////////////////////////////////////////////////////////////////////////////////

function jrnframeonload(){
	
	/////////pulls out URL substring preceding headerFrame file name
	/////////to check whether the journal header frameset is loaded in headerFrame
	var headerURL = ""+top.headerFrame.document.location;
	var charNum = headerURL.length;
	var lastSlash  = slashFinder(headerURL, charNum);
	var dirPath = headerURL.substring(0, (lastSlash));  //gets URL before headerFrame filename
	var jrnHeaderURL = dirPath + "jrnHeader.html";
	//alert(dirPath);
	//alert(filePath);
	
	
	if (top.headerFrame.document.location != jrnHeaderURL){
		alert(top.headerFrame.document.location);
		top.headerFrame.document.location = jrnHeaderURL;
	}
	
	///////the rest of the function checks whether the correct authorname
	/////// and date gifs are displayed
	var address = ""+document.location; 	//URL of frame named "mainFrame"
	//alert(address);
	var charNum = address.length;
		
	/////////pulls out URL substring preceding headerFrame file name
	var lastSlash  = slashFinder(address, charNum);
	var lastDot = dotFinder(address, charNum);
	var prefixURL = address.substring(0, (lastSlash+1));  //gets URL before date
	var suffixURL = address.substring(lastDot, address.length);    //gets HTML file suffixURL

	////////gets year/month/year
	var firstLetter = (address.charAt(lastSlash));
	var year =  (address.substring(( lastSlash + 1), ( lastSlash + 5)));
	var month = (address.substring((lastSlash + 5), (lastSlash + 7)));
	var day1 = (address.charAt((lastSlash + 7)));
	var day2 = (address.charAt((lastSlash + 8)));
	
	//alert(day2);
	
	if (firstLetter=="b"){
		/////////////top.headerFrame
		if (top.headerFrame.document.images[0].src != '../interface/interface_grfx/banks.gif'){	
				top.headerFrame.document.images[0].src = '../interface/interface_grfx/banks.gif';
		}		
	}else if (firstLetter=="c"){
		if (top.headerFrame.document.images[0].src != '../interface/interface_grfx/cook.gif'){	
				top.headerFrame.document.images[0].src = '../interface/interface_grfx/cook.gif';
		}	
	}else if (firstLetter=="h"){
		if (top.headerFrame.document.images[0].src != '../interface/interface_grfx/hawks.gif'){	
				top.headerFrame.document.images[0].src = '../interface/interface_grfx/hawks.gif';
		}		
	}
	

	if (day1 != 0){
		if (top.headerFrame.document.images[1].src != '../interface/interface_grfx/d' + eval(day1) + '.gif'){
			top.headerFrame.document.images[1].src = '../interface/interface_grfx/d' + eval(day1) + '.gif';
		}
	}
	
	if (top.headerFrame.document.images[2].src != '../interface/interface_grfx/d' + eval(day2) + '.gif'){
		//alert(top.headerFrame.document.images[2].src);
		top.headerFrame.document.images[2].src = '../interface/interface_grfx/d' + eval(day2) + '.gif';
	}
	
	if (month == 1){
		if (top.headerFrame.document.images[3].src != '../interface/interface_grfx/jan.gif'){
			top.headerFrame.document.images[3].src = '../interface/interface_grfx/jan.gif';
		}
	}else if (month == 2){
		if (top.headerFrame.document.images[3].src != '../interface/interface_grfx/feb.gif'){
			top.headerFrame.document.images[3].src = '../interface/interface_grfx/feb.gif';
		}
	}else if (month == 3){
		if (top.headerFrame.document.images[3].src != '../interface/interface_grfx/mar.gif'){
			top.headerFrame.document.images[3].src = '../interface/interface_grfx/mar.gif';
		}
	}else if (month == 4){
		if (top.headerFrame.document.images[3].src != '../interface/interface_grfx/apr.gif'){
			top.headerFrame.document.images[3].src = '../interface/interface_grfx/apr.gif';
		}
	}else if (month == 5){
		if (top.headerFrame.document.images[3].src != '../interface/interface_grfx/may.gif'){
			top.headerFrame.document.images[3].src = '../interface/interface_grfx/may.gif';
		}
	}else if (month == 6){
		if (top.headerFrame.document.images[3].src != '../interface/interface_grfx/jun.gif'){
			top.headerFrame.document.images[3].src = '../interface/interface_grfx/jun.gif';
		}
	}else if (month == 7){
		if (top.headerFrame.document.images[3].src != '../interface/interface_grfx/jul.gif'){
			top.headerFrame.document.images[3].src = '../interface/interface_grfx/jul.gif';
		}
	}else if (month == 8){
		if (top.headerFrame.document.images[3].src != '../interface/interface_grfx/aug.gif'){
			top.headerFrame.document.images[3].src = '../interface/interface_grfx/aug.gif';
		}
	}else if (month == 9){
		if (top.headerFrame.document.images[3].src != '../interface/interface_grfx/sep.gif'){
			top.headerFrame.document.images[3].src = '../interface/interface_grfx/sep.gif';
		}
	}else if (month == 10){
		if (top.headerFrame.document.images[3].src != '../interface/interface_grfx/oct.gif'){
			top.headerFrame.document.images[3].src = '../interface/interface_grfx/oct.gif';
		}
	}else if (month == 11){
		if (top.headerFrame.document.images[3].src != '../interface/interface_grfx/nov.gif'){
			top.headerFrame.document.images[3].src = '../interface/interface_grfx/nov.gif';
		}
	}else if (month == 12){
		if (top.headerFrame.document.images[3].src != '../interface/interface_grfx/dec.gif'){
			top.headerFrame.document.images[3].src = '../interface/interface_grfx/dec.gif';
		}
	}	
	
	if (top.headerFrame.document.images[4].src != '../interface/interface_grfx/y'+ year + '.gif'){
			top.headerFrame.document.images[4].src = '../interface/interface_grfx/y'+ year + '.gif';
	}
}


function stagetitler(title){
	
	top.headerFrame.document.write("<html><head>");
	top.headerFrame.document.write("<script language='javascript' src = '../script/datetripper.js'></script></head>");
	top.headerFrame.document.write("<body background='../interface/interface_grfx/grid_WIN.gif'");
	top.headerFrame.document.write("onLoad='nothing()'>");
	top.headerFrame.document.write("<center><font face='Arial, Helvetica, sans-serif' ><H3><BR>");
	top.headerFrame.document.write(title + "</H3></font></center></body></html>");
}




function stagetitle(){
	var address = ""+top.mainFrame.location; 	//URL of frame named "bodyFrame"
	var charNum = address.length;
		
	/////////pulls out URL substring preceding and following date component of file name
	var charPos  = slashFinder(address, charNum);
	var prefixURL = address.substring(0, (charPos +6));  //gets URL before date
	var suffixURL = address.substring(charPos +6, address.length); //gets HTML file 											suffixURL

	///////puts new URL back together
	var titleURL = prefixURL+"title" +suffixURL;	
	//alert(titleURL);

	//thisTitle= ""+title;
	top.headerFrame.document.location= titleURL;
	
}