// JavaScript Document
	function toggle_survey_divs(div_show, div_hide, tab_div_selected, tab_div_unselected) {
		var div_to_show = document.getElementById(div_show);
		var div_to_hide = document.getElementById(div_hide);
		var switch_tab_div_selected = document.getElementById(tab_div_selected);
		var switch_tab_div_unselected = document.getElementById(tab_div_unselected);
		div_to_show.style.display=((div_to_show.style.display=="none") ? "block" : "none");
		switch_tab_div_selected.className = 'survey_tabs_selected';
		
		div_to_hide.style.display=((div_to_hide.style.display=="none") ? "block" : "none");
		switch_tab_div_unselected.className = 'survey_tabs_unselected';
	}
	
	if (navigator.platform == "Win32" && navigator.appName == "Microsoft Internet Explorer" && window.attachEvent) {
		document.writeln('<style type="text/css">img, input.image { visibility:hidden; } </style>');
		window.attachEvent("onload", fnLoadPngs);
	}
	
	function fnLoadPngs() {
		var rslt = navigator.appVersion.match(/MSIE (\d+\.\d+)/, '');
		var itsAllGood = (rslt != null && Number(rslt[1]) >= 5.5);
	
		for (var i = document.images.length - 1, img = null; (img = document.images[i]); i--) {
			if (itsAllGood && img.src.match(/\.png$/i) != null) {
				fnFixPng(img);
				img.attachEvent("onpropertychange", fnPropertyChanged);
			}
			img.style.visibility = "visible";
		}
	
		var nl = document.getElementsByTagName("INPUT");
		for (var i = nl.length - 1, e = null; (e = nl[i]); i--) {
			if (e.className && e.className.match(/\bimage\b/i) != null) {
				if (e.src.match(/\.png$/i) != null) {
					fnFixPng(e);
					e.attachEvent("onpropertychange", fnPropertyChanged);
				}
				e.style.visibility = "visible";
			}
		}
	}
	
	function fnPropertyChanged() {
		if (window.event.propertyName == "src") {
			var el = window.event.srcElement;
			if (!el.src.match(/x\.gif$/i)) {
				el.filters.item(0).src = el.src;
				el.src = "x.gif";
			}
		}
	}
	
	function dbg(o) {
		var s = "";
		var i = 0;
		for (var p in o) {
			s += p + ": " + o[p] + "\n";
			if (++i % 10 == 0) {
				alert(s);
				s = "";
			}
		}
		alert(s);
	}
	
	function fnFixPng(img) {
		var src = img.src;
		img.style.width = img.width + "px";
		img.style.height = img.height + "px";
		img.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "', sizingMethod='scale')"
		img.src = "x.gif";
	}