browser = navigator.appName;
ver = parseInt(navigator.appVersion);

active = ((browser == "Netscape") && (ver >= 3)) ||
	(browser == "Opera") && (ver >=3) ||
	((browser == "Microsoft Internet Explorer") && (ver >= 4));

function rollIn(imgName)
{ 
	if (active)
	{
	        imgFile = "nav/" + imgName + "on.gif";
	        document [imgName].src = imgFile;
	}
}

function pushIn(imgName)
{ 
	if (active)
	{
	        imgFile = "nav/" + imgName + "on.gif";
	        document [imgName].src = imgFile;
	}
}

function rollOut(imgName) 
{ 
	if (active) 
	{
		imgFile = "nav/" + imgName + "off.gif";
		document [imgName].src = imgFile;
	}
}

function pushOut(imgName) 
{ 
	if (active) 
	{
		imgFile = "nav/" + imgName + "off.gif";
		document [imgName].src = imgFile;
	}
}
        
function preCache() 
{ 
	if (active) 
	{		
	precache1=new Image
	precache1.src="nav/home_on.gif"		
	precache2=new Image
	precache2.src="nav/home_off.gif"		
	precache3=new Image
	precache3.src="nav/diary1_on.gif"		
	precache4=new Image
	precache4.src="nav/diary1_off.gif"		
	precache5=new Image
	precache5.src="nav/diary2_on.gif"		
	precache6=new Image
	precache6.src="nav/diary2_on.gif"		
	precache7=new Image
	precache7.src="nav/concerts_off.gif"		
	precache8=new Image
	precache8.src="nav/concerts_on.gif"		
	precache9=new Image
	precache9.src="nav/wall_off.gif"		
	precache10=new Image
	precache10.src="nav/wall_on.gif"		
	precache11=new Image
	precache11.src="nav/break.gif"		
	precache12=new Image
	precache12.src="nav/endshim.gif"	
	precache13=new Image
	precache13.src="nav/endshim2.gif"	
	}
}

function windowOpener(theFile) 
{
	winWidth = 500;
	winHeight = 400;

	strInfo = "nav/" +theFile +".shtml"
	fileWin = window.open(strInfo,'fileWin','toolbar=0,location=0,directories=0,status=0,menubar=1,scrollbars=1,resizable=0,width=' + winWidth +',height=' + winHeight+');');
}