function show_iframe(id){
	if(id==1){
		html='<IFRAME WIDTH=200 HEIGHT=150 frameBorder=0 scrolling=no SRC="http://www.bangkokbank.com/MajorRates/MainBannerThai.htm"></IFRAME>';
	}
	if(id==2){
		html='<IFRAME WIDTH=200 HEIGHT=350 frameBorder=0 scrolling=no SRC="http://www.pttplc.com/th/oilprice.asp"></IFRAME>';
	}
	if(id==3){
		html='<IFRAME WIDTH=200 HEIGHT=250 frameBorder=0 scrolling=no SRC="http://www.tmd.go.th/daily_forecast_forweb.php"></IFRAME>';
	}

	document.write(html);
}