function OpenWindow(ImageId)
{
    var url = 'imageviewer.aspx?imageid=' + ImageId;
    winx = window.open (url, 'ImageViewer', 'height=545,width=525, toolbar=no, menubar=no, scrollbars=yes, resizable=yes,location=no, directories=no, status=yes');
    winx.focus();
}
   
function CheckNumeric()
{
    if ( event.keyCode < 48 || event.keyCode > 57 ) 
    {
        event.keyCode = 0;
    }
}