function ViewWindow(pHtmlName,wid,hei)
	{
     window.open( pHtmlName, "", "status=0,width="+wid+",height="+hei)
     }

function changeImg(imgName, imgSrc)
	{
	document.images[imgName].src = imgSrc;
	}

function random_img(){
	var imgarray = new Array("toppage/image01.jpg","toppage/image02.jpg","toppage/image03.jpg");
	// imgarray.length
	var dd = new Date();
	var sec = dd.getSeconds()
	var curimg = imgarray[sec % imgarray.length];
	// debug :-0
	// alert("<img src=\"" + curimg + "\">");
	document.write("<img src=\"" + curimg + "\" WIDTH=\"350\" HEIGHT=\"392\">");
}