function winpop(filename,opth,optw,loc) 
{
match=filename.slice(0,4);
if(match!="http")
{
temp="http://www.asia2002.gov.hk";
filename=temp+filename;
}
	winp=window.open(filename, loc,'height='+opth+',width='+optw+',scrollbarS=1,toolbar=0,status=0,resizable=1,top=50,left=0');
	if (parseInt(navigator.appVersion) >= 3)
		winp.focus();
}