function SwitchImage(img) {
    var bigimg = document.getElementsByName("bigimage").item(0);
	if (bigimg != null)
	{
		bigimg.src = img.src;
	}
}

function RegisterMouseMove() {
    document.onmousemove = MoveArea;
}
function ShowBiggerImage(bigpic) {
    document.getElementById("LargeImageContainerDiv").innerHTML = "<img src='" + bigpic + "'+'>";
    document.getElementById("LargeImageContainerDiv").style.display = 'inherit';
}

function ShowDefaultImage(obj) {
    document.getElementById("LargeImageContainerDiv").innerHTML = "";
    document.getElementById("LargeImageContainerDiv").style.display = 'none';
}

function MoveArea(event) {
    event = event || window.event;
    if (document.getElementById("LargeImageContainerDiv") != null) {
        var xOffset = 30;
        var yOffset = -140;
        if (document.documentElement.scrollTop > 0) {
            document.getElementById("LargeImageContainerDiv").style.left = event.clientX + document.documentElement.scrollLeft + xOffset + "px";
            document.getElementById("LargeImageContainerDiv").style.top = event.clientY + document.documentElement.scrollTop + yOffset + "px";
        }
        else {
            document.getElementById("LargeImageContainerDiv").style.left = event.clientX + document.body.scrollLeft + xOffset + "px";
            document.getElementById("LargeImageContainerDiv").style.top = event.clientY + document.body.scrollTop + yOffset + "px";
        }        
    }
}