Get QueryString value using javascript

function  getAllQueryString() {

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;

}

function  getQueryString(name) {

return  getUrlVars()[name];

}

Get the QueryString using the following Syntax

var  hID = getQueryString( );