function sfHover () {
	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);

function changeBG(newElement,newImage){
	var theImage = newImage;
	var theElement = document.getElementById(newElement);
	theElement.style.backgroundImage="url(" + theImage + ")";
}

/* pour sélection du menu principal */
function selectTopMenu(){
	var urlHttp = location.href.split('//');
	var urlParts = urlHttp[1].split('/');
	if(urlParts[2]!='Liens')
		{
	
		if(urlParts.length==3) {
			//alert(urlParts[2]);
			document.getElementById("mnu_default").className= "current_item";
		}
		else if(urlParts.length==4) {
			//alert(urlParts[2]);
			document.getElementById("mnu_" + urlParts[2]).className= "current_item";			
		}
	}
}