function show_post_ads() {
	// Instantiate a Panel from markup
	var post_ads = new YAHOO.widget.Panel("post_ads", { width:"320px", visible:true, constraintoviewport:true, draggable:false, modal:true, fixedcenter:true, effect:{effect:YAHOO.widget.ContainerEffect.FADE,duration:0.25}, iframe:true } );
	post_ads.render(document.body);
	post_ads.show;
}

function load_chart(survey_id) {

	var ad_url = "/survey/ads/ads_pre_view";
	var post_url = '/survey/post';
	var view_url = '/survey/show_results/'+survey_id;
	var survey_form = document.getElementById('survey_form');
	var post_ads;

	function init_chart () {
		do_ajax(view_url,document.getElementById('survey'),0,'',setTimeout(function () { show_post_ads(); }, 12000));
	}

	function pre_ads_load () {
		do_ajax(ad_url, document.getElementById('survey'),0,'',setTimeout(function(){ init_chart() }, 6000));
	}

	if (document.getElementById("survey-message")) {
		document.getElementById("survey-message").innerHTML = '';
	}

	do_ajax(post_url,document.getElementById('survey-loading'),1,survey_form,pre_ads_load);

}