(function(){

    var s = window.location.search.substring(1).split('&');

    if(!s.length) return;

    window.$_GET = {};

    for(var i  = 0; i < s.length; i++) {

        var parts = s[i].split('=');

        window.$_GET[unescape(parts[0])] = unescape(parts[1]);

    }

}())


	var t = $_GET['t'];
	//var rand = Math.round(Math.random() * 3);
	
	if(t == null){ t=0; }
	
	test_id = "test_" + t;

	document.getElementById(test_id).style.display = "block";