var path = "http://202.130.151.36/webchart/webchart.aspx?";
//var path = "http://www.kvbkunlun.com/WebCharts/webchart.aspx?";
var targetChart=1;
var cacheImg = new Image();
cacheImg.onload=ImageLoaded;
function ChangeImage(symbol,intv,imgid)
{		
	var sbo = 's=' + symbol;
	var intv = 't=' + intv;
    
    targetLoading = "loading"+imgid;
	document.getElementById(targetLoading).style.visibility="visible";
	targetChart = imgid;
	
	cacheImg.src = path + sbo + '&' + intv + '&w=208&h=180';	
}

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