function popNS(url, name, width, height) {
    var winLeft = (screen.width - width) / 2 ;
    var winTop = (screen.height - height) / 2 ;
    param = 'height='+ height +', width='+ width +', top='+ winTop +', left='+ winLeft +'' ;
    win = window.open(url, name, param) ;
    if (parseInt(navigator.appVersion) >= 4) win.window.focus() ;
}

function goSearch(zazaz) {
	if (zazaz.value.length  < 3) {
		alert("La recherche doit porter sur trois caractères au moins") ;
	}
	else {
		document.forms[1].submit() ;
	}	
}