function getURLQS(QField){
var myField=unescape(location.search.substr(1,location.search.length));
var cSearch= QField + "=";
var cStart=myField.indexOf(cSearch);
var cResult="";

if(cStart != -1){
for (var i= (cStart + cSearch.length); (i<myField.length) && (myField.charAt(i) !="&"); i++)
cResult+=myField.charAt(i);
}
return cResult;
pega()
}