var refer = '';

query_string = unescape(location.href.substring(location.href.indexOf('?') + 1, location.href.length));
query_variables = query_string.split('&')
for (var i=0; i < query_variables.length; i++) {
   name_value_pair = query_variables[i].split('=');
   if (name_value_pair[0] == 'refer') {
     refer = name_value_pair[1];
   }
}

/*var refer = window.location.search.substring(1);
var vars = refer.split("&");
Êfor (var i=0;i< vars.length;i++) {
ÊÊÊvar pair = vars[i].split("=");
ÊÊÊ if (pair[0] == variable) {
ÊÊÊÊÊ return pair[1];
ÊÊÊ }
Ê }Ê
Ê var refer = "Direct";
}*/