Easy Query String in JavaScript

One feature that is missing from both core JavaScript and jQuery is the ability to parse data from the query string. I include (and use) this function in nearly all of my applications.

function Q$(name) {
 var reQs, val;
 reQs = new RegExp("[\\?&]" + name + "=([^&#]*)", "i");
 val = reQs.exec(parent.location.search);
 return (val) ? unescape(val[1]) : "";
}

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