function getQueryValue(fieldname)
{
query = this.location.href;
query = query.substring((query.indexOf('?')) + 1);
string_arr = query.split('&');
for (i = 0; i< string_arr.length; i++)
{
if (string_arr[i].indexOf(fieldname)>-1)
{
string_arr[i] = string_arr[i].substring((string_arr[i].indexOf('=')) + 1);
return string_arr[i];
}
}
return ("not found");
}