Get Method extracting data

http://www.mysite/page.aspx?var1="123"&var2="456"

<script src="~/Scripts/jquery-1.4.1.js" type="text/javascript"></script>

<script language="javascript" type="text/javascript">
    $(document).ready(function() {
        $.ajaxSetup({
            cache: false,
            dataType: "html",
            error: function(xhr, status, error) {
                alert('An error occurred: ' + error);
            },
            timeout: 30000,
            type: "GET",
            beforeSend: function() {
                console.log('In Ajax beforeSend function');
            },
            complete: function() {
                console.log('In Ajax complete function');
            }
        });
        //I want to extract var1 and var2 into textboxes
    });
</script>