{{ head_content }}
    

    function get_query_variable(key)
    {
           var query = window.location.search.substring(1);
           var vars = query.split("&");
           for (var i=0;i<vars.length;i++) {
                   var pair = vars[i].split("=");
                   if(pair[0] == key){return pair[1];}
           }
           return(false);
    }

    function finish_form_with_query_variable(key)
    {
        var query_value = get_query_variable(key);
        if (query_value != false) {
            document.getElementById('post_form_item').value = query_value;
            document.forms['post_form'].submit();
        }
    }