function imgSwap(oImg) { 
	var strOver = "_over" // image to be used with mouse over 
	var strOff = "_up" // normal image 
	var strImg = oImg.src 
	if (strImg.indexOf(strOver) != -1)  
	oImg.src = strImg.replace(strOver,strOff) 
	else 
	oImg.src = strImg.replace(strOff,strOver) 
} 
function P(url,h,w) { // (url,height,width)
var p = "height=" + h + ",width=" + w + ",scrollbars=yes";
window.open(url,"",p);
}