function ImageSwap(WhichImg,ImgURL) {
	if(document.images) {
		document.images[WhichImg].src = ImgURL;
	}
}
function iecompattest() {
return (document.compatMode && document.compatMode != "BackCompat") ? document.documentElement : document.body
}
function ImageSwapMove(WhichImg,ImgURL, event) {
	if(document.images) {
		document.images[WhichImg].src = ImgURL;

		if (window.innerWidth || window.opera) {
			pageH=innerHeight;
		}
		else if (document.body) {
			pageH=iecompattest().offsetHeight;
		}
    
		if(document.images[WhichImg].height > pageH) {
 			document.images[WhichImg].style.top = "0px";
			alert("1");
		}
		else if((document.images[WhichImg].height + 50 + event.clientY) > pageH) {
			document.images[WhichImg].style.top = (pageH - 50 - document.images[WhichImg].height) + "px";
		}
		else {
			document.images[WhichImg].style.top = event.clientY + "px";
		}
	}
}