function ShowAll(url, pname, wid)
{   
	var PopPosX = ((screen.availWidth - wid)/2);
	window.open(url,pname,'width='+wid+',height=650,resizable=yes,scrollbars=yes,toolbar=yes,left='+PopPosX+',top=10');
}

function ShowPopup(key)
{   
	var wid = 560; 
	var co_url = "http://www.expo21xx.com/popup/" + key + ".htm";
	ShowAll(co_url, key, wid);
}

function ShowStand(url, pname)
{   
	var wid = 850;
	var sname = "h" + pname;
	ShowAll(url, sname, wid);
}

function ShowProduct(url)
{   
	var wid = 615;
	var name = "Product";
	ShowAll(url, name, wid);
}