function r_SetCookie (name, value) {
var argv = r_SetCookie.arguments;
var argc = r_SetCookie.arguments.length; 
var expires; 
var exdate=new Date();
exdate.setDate(exdate.getDate()+5);
expires = exdate; 
var path = (argc > 3) ? argv[3] : null; 
var domain = (argc > 4) ? argv[4] : null;
var secure = (argc > 5) ? argv[5] : false;
var rDomain=window.location.host;
var aDomain = rDomain.split("www.");
var sDomain = "."+aDomain[aDomain.length-1]; 
document.cookie = name + "=" + escape (value) + ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + "; path=/" + ((sDomain == null) ? "" : ("; domain=" + sDomain)); 
}

function getQueryVariable(variable) {
var query = window.location.search.substring(1);

var vars = query.split("&");
for (var i=0;i<vars.length;i++) {
var pair = vars[i].split("=");
if (pair[0] == variable) {
return pair[1];
}
}
return false; 
}
var my_oid = getQueryVariable('oid');
if(my_oid)
{ 
r_SetCookie('oid',my_oid);
}