function getQueryString(key)
{
var vars = [], parm, parms, rawQueryString;
var queryStringI;
queryStringI = window.location.href.indexOf('?');
//only extract if we find parameters
if (queryStringI > -1)
{
var rawQueryString = window.location.href.slice(queryStringI + 1);
parms = rawQueryString.split('&');
for (var i = 0; i < parms.length; i++)
{
parm = parms[i].split('=');
vars.push(parm[0]);
vars[parm[0]] = unescape(parm[1]);
}
}
if (typeof (key) === "undefined")
{
return vars;
}
else
{
return vars[key];
}
}
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