function createQues() {
	if ($('questionary-overlay')) return;
	ques = new Element('div', {'id':'questionary-overlay'});
	ques.set('html','<div class="questionary-overlay-box">' +
			'<div class="questionary-overlay-top">&nbsp;</div>'+
         '<div class="questionary-overlay-middle">'+
            '<iframe id="iframe-quest" name="iframe-quest" src="http://www.bravo.cz/poll/" width="100%" height="750" frameborder="0"></iframe>'+
         '</div>'+
         '<div class="questionary-overlay-bottom">&nbsp;</div>'+
      '<div class="questionary-overlay-close"><a id="close-ques" href="#" title="Zavřít"><span>Zavřít</span></a></div></div>')
     
     $(document.body).grab(ques,'bottom');
	 $('questionary-overlay').setStyle('top', $(document.body).getScroll().y);
     $('iframe-quest').addEvent('load', function(ev) {
    	 $('iframe-quest').setStyle('height', $('iframe-quest').contentDocument.body.scrollHeight);
    	 
     });
     $('close-ques').addEvent('click', function(ev) {
    	 $('questionary-overlay').dispose();
    	 ev.stop();
    	 
     });
}

window.addEvent("domready", function() {
	$$('.ques').each(function(el) {
		el.addEvent('click', function(ev) {
			createQues();
			ev.stop();
		})
	});
});