// JavaScript Document

/* addRemoveEvent
********************/
function addRemoveEvent(add, el, evt, func){
	if(add){
		if(el.addEventListener) el.addEventListener(evt, func, false);
		else if (el.attachEvent) el.attachEvent("on" + evt, func);
	}else{
		if(el.removeEventListener) el.removeEventListener(evt, func, false);
		else if (el.detachEvent) el.detachEvent("on" + evt, func);
	}
}

/* clearOnFocus
********************/
var toClear = new Array();
toClear.push("recherche");

function initClearOnFocus(){
	for (var i=0; i<toClear.length; ++i){
		var itemToClear = document.getElementById(toClear[i]);
		if(!itemToClear) continue;
		addRemoveEvent(true, itemToClear, "focus", clearOnFocus);
	}
}
function clearOnFocus(e) {
	var evt = e || window.event;
	var evtTarget = evt.target || evt.srcElement;
	evtTarget.value="";
	addRemoveEvent(false, evtTarget, "focus", clearOnFocus);
}

/* init
********************/
addRemoveEvent(true, window, "load", initClearOnFocus);