(function($){

$(document).ready( function(){

    var date = getParameterByName('event_date');
    if(date != "")
        $(".wpcf7-form .event_date").val(date);
    $(".wpcf7-form .event_title").val(getParameterByName('event_title'));

});

function getParameterByName( name ){
  name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  var regexS = "[\\?&]"+name+"=([^&#]*)";
  var regex = new RegExp( regexS );
  var results = regex.exec( window.location.href );
  if( results == null )
    return "";
  else
    return decodeURIComponent(results[1].replace(/\+/g, " "));
}

})(jQuery);