Get url parameter jquery Or Get Query String Values In js

// Read a page's GET URL variables and return them as an associative array.
function getUrlVars()
{
    var vars = [], hash;
    var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
    for(var i = 0; i < hashes.length; i++)
    {
        hash = hashes[i].split('=');
        vars.push(hash[0]);
        vars[hash[0]] = hash[1];
    }
    return vars;
}

//example site url
 
http://www.knowledgebags.com/get-url-parameter-jquery-or-get-query-string-values-in-js/?page_count=2
 
//get the parameter
var page_count = getUrlVars()["page_count"];