var imageViewerWin = "";
function OpenImageViewer(address)
{
	if (imageViewerWin == "" || imageViewerWin.closed || imageViewerWin.location!=address)
	{
		imageViewerWin = window.open(address,"image_viewer","WIDTH=950,HEIGHT=750");
		imageViewerWin.focus();
	}
	else
	{
		imageViewerWin.focus();
	}
	return imageViewerWin;

}

function togglePopupImage(thumbnail, imgPopupId)
{
    $get(imgPopupId).src = thumbnail;             
}