﻿// JScript 文件

// 说明：用 JavaScript 实现网页图片等比例缩放              
function DrawImage(ImgD,FitWidth,FitHeight)        
{        
    var image=new Image();        
    image.src=ImgD.src;        
    if(image.width>0 && image.height>0)        
    {        
        if(image.width/image.height>= FitWidth/FitHeight)        
        {        
            if(image.width>FitWidth)        
            {        
                ImgD.width=FitWidth;        
                ImgD.height=(image.height*FitWidth)/image.width;        
            }        
            else        
            {        
                ImgD.width=image.width;        
                ImgD.height=image.height;        
            }        
        }        
        else        
        {        
            if(image.height>FitHeight)        
            {        
                ImgD.height=FitHeight;        
                ImgD.width=(image.width*FitHeight)/image.height;        
            }        
            else        
            {
                ImgD.width=image.width;        
                ImgD.height=image.height;        
            }        
        }        
    }        
}
