function navOver(something) {
	// show new over on
	newOver = document.getElementById("nav" + something);
	newOver.src = newOver.src.replace("_off","_on");
	
	//hide temporarily the selected one
	selOver = document.getElementById("nav" + sectionCurrent);
	if((selOver != undefined) && (sectionCurrent != something)) {
		selOver.src = selOver.src.replace("_on","_off");
	}
	
	//only work the expanded nav if it exists, and not "Updates"
	//if((document.getElementById("navigationExpanded") != undefined) && (something != "Updates")) {
	if(document.getElementById("navigationExpanded") != undefined) {
		//hide temporarily the selecte expanded nav
		//selNavExp = document.getElementById("navExp" + sectionCurrent);
		//selNavExp.style.display = 'none';
		
		//show new expanded nav
		//newNavExp = document.getElementById("navExp" + something);
		//newNavExp.style.display = 'block';
		newNavExp.style.opacity = '0.3';
		newNavExp.style.filter = 'alpha(opacity = 30)';
		
		if(sectionCurrent == something) {
			newNavExp.style.opacity = '1';
			newNavExp.style.filter = 'alpha(opacity = 100)';
		}
	}
	
}

function navOut(something) {
	//turn new over off
	newOver = document.getElementById("nav" + something);
	newOver.src = newOver.src.replace("_on","_off");
	
	
	//show the selected one
	selOver = document.getElementById("nav" + sectionCurrent);
	if((selOver != undefined)) {
		selOver.src = selOver.src.replace("_off","_on");
	}
	
	//only work the expanded nav if it exists, and not "Updates"
	//if((document.getElementById("navigationExpanded") != undefined) && (something != "Updates")) {
	if(document.getElementById("navigationExpanded") != undefined) {
		//hide the new expanded nav
		//newNavExp = document.getElementById("navExp" + something);
		//newNavExp.style.display = 'none';
		
		//show the selected expanded nav
		selNavExp = document.getElementById("navExp" + sectionCurrent);
		selNavExp.style.display = 'block';
		newNavExp.style.opacity = '1';
		newNavExp.style.filter = 'alpha(opacity = 100)';
	}
}


function setNav(something) {

	if(something != undefined) {
		newsrc = document.getElementById("nav" + something).src.replace("_off","_on");
		document.getElementById(something).src = newsrc;
	}
	
	else if (sectionCurrent != (undefined|"")) {
		
		newsrc = document.getElementById("nav" + sectionCurrent).src.replace("_off","_on");
		document.getElementById("nav" + sectionCurrent).src = newsrc;
	}
	
	//only set the expanded nav if it exists
	
	if((document.getElementById("navigationExpanded") != undefined) && (sectionCurrent != "Updates")) {
		//show new expanded nav
		newNavExp = document.getElementById("navExp" + sectionCurrent);
		newNavExp.style.display = 'block';
	}
	
	//show the sectionSubCurrent
	if (sectionSubCurrent != "") {
		highlight = document.getElementById("navExp" + sectionSubCurrent);
		highlight.style.fontWeight = "bold";
	}
	
}