function DrawImage(ImgD){ 
    var image=new Image(); 
    image.src=ImgD.src; 
    if(image.width>0 && image.height>0){ 
        flag=true; 
        if(image.width>=100){ 
            ImgD.width=100; 
            ImgD.height=(image.height*100)/image.width; 
        }else{ 
            ImgD.width=image.width; 
            ImgD.height=image.height; 
        }  
    } 
}