function js_getObj(obj_id){
	if(document.getElementById){
		return document.getElementById(obj_id);
	}
	else if(document.all){
		return document.all[obj_id];
	}
	else if(document.layers){
		return document.layers[obj_id];
	}
	else{
		return false;
	}
}
function lines(chaine,el) {
	var index = chaine.indexOf("\n");
	var lastindex = chaine.lastIndexOf("\n");
	if (index !=lastindex && index !=-1) {
		t = chaine.split("\n");
		if(t.length>2) {
			good = t[0]+"\n";
			chaine = chaine.replace(
				new RegExp("\\n","g"),"");
			chaine = chaine.substring(index);
			chaine = good + chaine;
		} 
		js_getObj(el).value=chaine;
	}
	return true;
}