function _$(obj){return document.getElementById(obj);}
function onHover(menuId){
	if(_$(menuId)){var src=_$(menuId).src;_$(menuId).src=src.replace("/img/"+menuId+"_on.gif","/img/"+menuId+"_over.gif");}
}
function onOut(menuId){
	if(_$(menuId)){var src=_$(menuId).src;_$(menuId).src=src.replace("/img/"+menuId+"_over.gif","/img/"+menuId+"_on.gif");}
	var arr=["projects","about","news","articles","contact"];	
	var url=location.href;
	for(var i=0;i<=arr.length;i++){
		if(url.indexOf(arr[i])!=-1){
			try{onHover('m0'+(i+1))}catch(e){}	
			break;		
			}
		
	}	
}