function popupcentree(page,largeur,hauteur,options){
var top=(screen.height-hauteur)/2;
var left=(screen.width-largeur)/2;
window.open(page,"","top="+top+",left="+left+",width="+largeur+",height="+hauteur+","+options);
}

function all_select(nbuser,thisname){
	//alert ("nb="+nbuser+" this"+thisname);
	for(i=0; i < (nbuser);i++){
		var objselect = "ID_"+thisname+"["+ i + "]";
		var etat = document.getElementById(thisname).checked;
		//alert ("etat="+etat);
		if(etat == true){
			document.getElementById(objselect).checked = true;
		}else{
			document.getElementById(objselect).checked = false;
		}
	}
}

function chgpage(formulaire){
	location.href = formulaire.filtre_cat.options[formulaire.filtre_cat.selectedIndex].value;
}