function showAd(ad) {
    var obj = document.getElementById("ad_" + ad);
    var bgObj = document.getElementById("bg_" + ad);

	obj.appendChild(bgObj);
	bgObj.style.display = 'block';
	
	/*
    bgObj.style.width = obj.style.width;
    bgObj.style.height = obj.style.height;
		
    offsetX = 0;
    offsetY = 0;
			
    while (obj.nodeName != "BODY") {
		
        offsetX += obj.offsetLeft;
        offsetY += obj.offsetTop;
		//alert( obj.nodeName +" "+ offsetX +" "+ offsetY)
        obj = obj.offsetParent;
    }
	
    bgObj.style.left = offsetX+"px";
    bgObj.style.top = offsetY+"px";
    bgObj.style.display = "";
	*/
}


function setCookie(name, value, days) { 
	//days = 1; // default to 1 day if empty 
	var expdate = new Date(); 
	expdate.setTime(expdate.getTime() + days*24*60*60*1000); 
	document.cookie = name + "=" + escape(value) + "; expires=" + expdate.toGMTString(); 
} 

function getCookie (name) {
	var dc = document.cookie;
	var cname = name + "=";
	var clen = dc.length;
	var cbegin = 0;

	while (cbegin < clen) { 
		var vbegin = cbegin + cname.length;

		if (dc.substring(cbegin, vbegin) == cname) { 
			var vend = dc.indexOf (";", vbegin);
			if (vend == -1) vend = clen;

			return unescape(dc.substring(vbegin, vend));
		}

		cbegin = dc.indexOf(" ", cbegin) + 1;

		if (cbegin== 0) break;
	}

	return null;
}


function ShowInfo(name,number,weight,melt,boil) {
	winWidth = 250;
	winHeight = 200;
	winLeft = parseInt((screen.width - winWidth) / 2);
	winTop = parseInt((screen.height - winHeight) / 2);
	winProps = 'width=' + winWidth + ',height=' + winHeight + ',top=' + winTop + ',left=' + winLeft + ',resizable=0,scrollbars=0,status=0';

	myTable = window.open('','tableElem',winProps);
	myTable.document.open();
	myTable.document.write(''
		+ '<body bgcolor="#F7F7E0" leftmargin="0" topmargin="0" marginwidth="0" marginheight="0" style="font-family: tahoma, sans-serif;">'
		+ '<table border="0" width="100%" height="100%" cellpadding="0" cellspacing="0"><tr><td align="center">'
		+ '<table border="0" cellpadding="0" cellspacing="4" style="font-size: 12px;">'
		+ '<tr><td colspan="2" class="heading1"><b>' + name + '</b></td></tr>'
		+ '<tr><td colspan="2"><img src="../../../_include/gui/line1.gif" width="180" height="1"></td></tr>'
		+ '<tr><td>Number</td><td>' + number + '</td>'
		+ '<tr><td>Weight</td><td>' + weight + '</td>'
		+ '<tr><td>Melt</td><td>' + melt + '</td>'
		+ '<tr><td>Boil</td><td>' + boil + '</td>'
		+ '</table>'
		+ '</td></tr></table>'
		+ '</body>');

	myTable.document.close();
	
	myTable.resizeTo(winWidth, winHeight);
	myTable.moveTo(winLeft, winTop);
	myTable.focus();
}

