window.onload=function(){
	//if(document.getElementById('content'))alterViewportHeight();
	addWhateverHover("navigation","li","over");
}
window.onresize=function(){
	//if(document.getElementById('content'))alterViewportHeight();
}
function alterViewportHeight() {
	var availHeight=0;
	if(typeof(window.innerWidth)=='number'){availHeight=window.innerHeight;}
	else if(document.documentElement&&(document.documentElement.clientWidth||document.documentElement.clientHeight)){
		availHeight=document.documentElement.clientHeight;
	}
	changeHeightTo=availHeight-225;
	document.getElementById('content').style.height=changeHeightTo+'px';
}

function addWhateverHover(where,whichElement,whatClass,onlyThisClass){
	if(document.all&&document.getElementById){
		var genContainer=document.getElementById(where);
		var genElements=genContainer.getElementsByTagName(whichElement);
		var l=genElements.length;
		for (i=0;i<l;i++){
			if ((genElements[i].className.indexOf(onlyThisClass)!=-1)||(!onlyThisClass)) {
				genElements[i].onmouseover=function(){this.className+=" "+whatClass;}
				genElements[i].onmouseout=function(){this.className=this.className.replace(" "+whatClass,"");}
			}
		}
	}
}