function addLoadEvent(func){
	var oldonload = window.onload;
	if(typeof window.onload != 'function') {
		window.onload = func;
	}else{
		window.onload = function(){
			oldonload();
			func();
		}
	}
}

function addUnloadEvent(func){
	var oldonunload = window.onunload;
	if(typeof window.onunload != 'function') {
		window.onunload = func;
	}else{
		window.onunload = function(){
			oldonunload();
			func();
		}
	}
}

function rollOver(obj){
	var s=obj.className;
	var newstr = s.replace("_off", "_on", "gi");
	obj.className=newstr;
}

function rollOut(obj){
	var s=obj.className;
	var newstr = s.replace("_on", "_off", "gi");	
	obj.className=newstr;
}

function getSelectLength(oElem){
	if(navigator.userAgent.indexOf("MSIE") != -1){
		return oElem.options.length;
	}else{
		return oElem.options[oElem.options.length];
	}
}

function largeur_fenetre()
{
	var sValue=0;
 if (window.innerWidth) sValue=window.innerWidth;
 else if (document.body && document.body.offsetWidth) sValue=document.body.offsetWidth;
 else sValue=0;
 	if(sValue<900){
		sValue=900;
	}
	return sValue;
 
}

function hauteur_fenetre()
{
	var sValue=0;
 	if (window.innerHeight) sValue=window.innerHeight;
 	else if (document.body && document.body.offsetHeight)  sValue=document.body.offsetHeight;
	 else  sValue=0;

	if(navigator.appVersion.indexOf('MSIE 7')>0 || navigator.appVersion.indexOf('MSIE 8')>0 || navigator.appVersion.indexOf('MSIE 9')>0){
		sValue=sValue-3;
	}
	if(sValue<600){
		sValue=600;
	}
	return sValue;


}


function resizeSite(){		
	var nLargeurNavigateur = largeur_fenetre(); 
	var nHauteurNavigateur = hauteur_fenetre(); 
	
	/*if(navigator.appName.indexOf('Internet Explorer')<0){
		nLargeurNavigateur-=17;
	}*/
	$('index').style.width=nLargeurNavigateur+'px';	
	$('index').style.height=nHauteurNavigateur+'px';	
	

	
	
}
function addOnResizeEvent(){
	
	window.onresize = resizeSite;
}