var path = "http://www.kvbkunlun.com.hk/webcharts/webchart.aspx?";
var targetChart=1;
var cacheImg = new Image();
cacheImg.onload=ImageLoaded;

function ChangeImage(symbol,intv,imgid)
{   
//   alert(symbol);
	var sbo = 's=' + symbol;
	var intv = 't=' + intv;
	
	targetLoading = eval("document.all.loading"+imgid);
	targetLoading.style.visibility = "visible";

	targetChart = imgid;

	cacheImg.src = path + sbo + '&' + intv + '&w=188&h=180';




}

function ImageLoaded()
{
	targetLoading = eval("document.all.loading"+targetChart);
	targetLoading.style.visibility = "hidden";
	
	targetChartImg = eval("document.all.chart"+targetChart);
	targetChartImg.src =  cacheImg.src;

}