var menuchangeall;
function preloadSingleImages(path, preloadList ) { 
	if ( document.images ) {
		var charLoc, charLoc2            = 0;
		var thisItem, thisFile, objName = '';
		while ( true ){
			charLoc = preloadList.indexOf( ',' );
			if ( charLoc == -1 ) 
				break;
			else{
				thisItem = preloadList.substring( 0, charLoc );
				charLoc2 = thisItem.indexOf( '*' );
				objName = thisItem.substring( 0, charLoc2 );
				thisFile = thisItem.substring( charLoc2 + 1 );
				eval ( 'document.' + objName + ' = new Image()' );
				eval ('document.'+ objName + '.src = "'+ path + thisFile + '"');
				
				preloadList = preloadList.substring( charLoc + 1 );
			}
		}
	} 
}

function menuChange(which, what) {
	if (!menuchangeall) {
		menuchangeall = 'on';
	}
	if (what == 'aboutus') {
		if (which == '2') {
			document.menuAboutUs.src = eval('document.menuAboutUs2.src');
		}
		else {
			document.menuAboutUs.src = eval('document.menuAboutUs1.src');
		}
	}
	else if (what == 'services') {
		if (which == '2') {
			document.menuServices.src = eval('document.menuServices2.src');
		}
		else {
			document.menuServices.src = eval('document.menuServices1.src');
		}
	}
	else if (what == 'maintenanceplans') {
		if (which == '2') {
			document.menuMaintenancePlans.src = eval('document.menuMaintenancePlans2.src');
		}
		else {
			document.menuMaintenancePlans.src = eval('document.menuMaintenancePlans1.src');
		}
	}
	else if (what == 'resourcelibrary') {
		if (which == '2') {
			document.menuResourceLibrary.src = eval('document.menuResourceLibrary2.src');
		}
		else {
			document.menuResourceLibrary.src = eval('document.menuResourceLibrary1.src');
		}
	}
	else if (what == 'contactus') {
		if (which == '2') {
			document.menuContactUs.src = eval('document.menuContactUs2.src');
		}
		else {
			document.menuContactUs.src = eval('document.menuContactUs1.src');
		}
	}
	if (which == '2') {
		menuChangeAll(what);
	}
}

function menuChangeAll(except) {
	if (menuchangeall == 'on') {
		if (except != 'aboutus') { document.menuAboutUs.src = eval('document.menuAboutUs1.src'); }
		if (except != 'services') { document.menuServices.src = eval('document.menuServices1.src'); }
		if (except != 'maintenanceplans') { document.menuMaintenancePlans.src = eval('document.menuMaintenancePlans1.src'); }
		if (except != 'resourcelibrary') { document.menuResourceLibrary.src = eval('document.menuResourceLibrary1.src'); } 
		if (except != 'contactus') { document.menuContactUs.src = eval('document.menuContactUs1.src'); }
	}
}


sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);