function ResizeImage(image, maxwidth, maxheight)
{
    w = image.width;
    h = image.height;
          
    if( w == 0 || h == 0 )
    {
        document.getElementById(image).width = maxwidth;
        document.getElementById(image).height = maxheight;
    }
    else if (w > h)
    {
        if (w > maxwidth) document.getElementById(image).width = maxwidth;
    }
    else
    {
        if (h > maxheight) document.getElementById(image).height = maxheight;
    }
    
    	document.getElementById(image).style.width='';
		document.getElementById(image).style.height='';
    
}