var win=null;
function zoom(url){
	left=20;
	top=20;
	settings="width=730,height=500,top=" + top + ",left=" + left + ",scrollbars=yes,location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=yes,dependent=no";
	win=window.open('fotos/' + url, "Zoom",settings);
	win.focus();
}

function checkFormGB() {
 if (document.gform.gname.value == '') {
        document.getElementById("gnameerr").innerHTML= " Kein Name angegeben<br />";
        document.gform.gname.style.border = "1px solid #FF0000";
        document.gform.gname.focus();
        return false;
 }else{
        document.getElementById("gnameerr").innerHTML= "";
        document.gform.gname.style.border = "1px solid #eee";
 }
 if (document.gform.gtext.value == ''){
        document.getElementById("gtexterr").innerHTML= " Kein Text angegeben";
        document.gform.gtext.style.border = "1px solid #FF0000";
        document.gform.gtext.focus();
        return false;
 }else{
        document.getElementById("texterr").innerHTML= "";
        document.gform.gtext.style.border = "1px solid #eee";
 }
return true; 
}