function getGet(name) {
var s = window.location.search;
s = s.match(new RegExp(name + '=([^&=]+)'));
return s ? decodeURI(s[1]) : false;
}
$(function(){
$("#field-input-1304696").val(getGet("utm_source"));
$("#field-input-1304697").val(getGet("utm_medium"));
$("#field-input-1304698").val(getGet("utm_campaign"));
});