function DrawImage(ImgD){
var flag=false;
   var image=new Image();
/*
	if ((ImgD.fileSize/1024)>512)
   {
		alert("图片最大只能是512K！请替换该图片，否则无法提交！");
		return false;
   }
*/
   image.src=ImgD.src;
   if(image.width>0 && image.height>0){
    flag=true;
    if(image.width/image.height>= 100/100){
     if(image.width>100){  
     ImgD.width=100;
     ImgD.height=(image.height*100)/image.width;
     }else{
     ImgD.width=image.width;  
     ImgD.height=image.height;
     }
     ImgD.alt=image.width+"×"+image.height;
     }
    else{
     if(image.height>100){  
     ImgD.height=100;
     ImgD.width=(image.width*100)/image.height;     
     }else{
     ImgD.width=image.width;  
     ImgD.height=image.height;
     }
     ImgD.alt=image.width+"×"+image.height;
     }
    }
}