function SetSize(obj, width, height) 
{ 
    myImage = new Image(); 
    myImage.src = obj.src; 
    if (myImage.width>0 && myImage.height>0) 
    { 
        var rate = 1; 
        if (myImage.width>width || myImage.height>height) 
        { 
            if (width/myImage.width<height/myImage.height) 
            { 
                rate = width/myImage.width; 
            } 
            else 
            { 
                rate = height/myImage.height; 
            } 
        } 
        if (window.navigator.appName == "Microsoft Internet Explorer") 
        { 
            obj.style.zoom = rate; 
        } 
        else 
        { 
            obj.width = myImage.width*rate; 
            obj.height = myImage.height*rate; 
        } 
    } 
}