var urlReecrite;

function PageLoadedHandler(sender, args) {
    //Code that you want to happen on every postback.
    //Asynch or Synch.

    annulerRequetesAjaxInutiles();
    document.forms[0].action = urlReecrite;
}

function modifierForm(url) {
    urlReecrite = url;
    if (Sys.WebForms != undefined) 
    {
        var prm = Sys.WebForms.PageRequestManager.getInstance();
        document.forms[0].action = urlReecrite;
        prm.add_pageLoaded(PageLoadedHandler);
    }
}

function initZonesCateg(idZoneCateg1) {
    var zone1 = document.getElementById(idZoneCateg1);

    if (zone1 != null && zone1 != undefined) document.getElementById(idZoneCateg1).style.display = 'none';
}