img1a = new Image()
img1a.src = "/images/chart_tabs/chart_tabs_djia_on.gif"
img1b = new Image()
img1b.src = "http://prochart.zacks.com/JpG/1.11/intraday/$DJI_zcom_home_120x120_blue.png?"

img2a = new Image()
img2a.src = "/images/chart_tabs/chart_tabs_nasd_on.gif"
img2b = new Image()
img2b.src = "http://prochart.zacks.com/JpG/1.11/intraday/COMP_zcom_home_120x120_blue.png?"

img3a = new Image()
img3a.src = "/images/chart_tabs/chart_tabs_spx_on.gif"
img3b = new Image()
img3b.src = "http://prochart.zacks.com/JpG/1.11/intraday/SPX_zcom_home_120x120_blue.png?"

function imageChange(imgName,imgSrc){
	document.images[imgName].src = eval(imgSrc +".src")
	var chart_url = document.getElementById('index_chart_id');
	chart_url.href = "";
	if ((imgSrc == "img1a") || (imgSrc == "img1b"))
	{
		chart_url.href = "http://www.zacks.com/research/report.php?type=charts&t=%24DJI";
	}
	else if ((imgSrc == "img2a") || (imgSrc == "img2b"))
	{
		chart_url.href = "http://www.zacks.com/research/report.php?type=charts&t=COMP";
	}
	else if ((imgSrc == "img3a") || (imgSrc == "img3b"))
	{
		chart_url.href = "http://www.zacks.com/research/report.php?type=charts&t=SPX";
	}
	else
	{
		chart_url.href = "http://www.zacks.com/research/report.php?type=charts&t=%24DJI";
	}
}