if (window.addEventListener) 
{
    window.addEventListener ("load",initialiser,false);
} else if (window.attachEvent) 
{
    window.attachEvent ("onload",initialiser);
}


function initialiser(){

	var lab = document.getElementById("recherche").getElementsByTagName("label");
	var inp = document.getElementById("recherche").getElementsByTagName("input");
		for(var i=0; i<lab.length; i++){	
			
			lab[i].style.visibility="visible";
			lab[i].onclick=suppr;
		}
		for(var j=0; j<(inp.length); j++){
			inp[j].onfocus=supprDeux;
			inp[j].onblur=affich;
			if (inp[j].value!=""){
				for(var i=0; i<lab.length; i++){
					if(lab[i].getAttribute("for")==inp[j].getAttribute("id")){
						lab[i].style.visibility="hidden";
					}
				}
			}
		}
	
}

function suppr(){
	this.style.visibility="hidden";
}

function supprDeux(){
	var lab = document.getElementsByTagName("label");
	for(var i=0; i<lab.length; i++){
		
		if(this.getAttribute("id")==lab[i].getAttribute("for")){
				lab[i].style.visibility="hidden";
		}
	}
}

function affich(){
	var lab = document.getElementsByTagName("label");
	for(var i=0; i<lab.length; i++){
		
		if(this.getAttribute("id")==lab[i].getAttribute("for")){
			if(this.value==""){
				lab[i].style.visibility="visible";
			}
		}
	}
}