//×Ô¶¯Ëõ·Å   
var   flag=false;   
function   DrawImage(ImgD,widthD,heightD){   
var image   =   new   Image();   
image.src   =   ImgD.src;   
if(image.width>widthD || image.height>heightD){   
flag   =   true;   
  if(image.width/image.height   >=   widthD/heightD){   
	if(image.width>widthD   ||   image.width<widthD){       
	ImgD.width   =   widthD;   
	ImgD.height   =  (image.height*widthD)/image.width;   
	}else{   
	ImgD.width   =   image.width;       
	ImgD.height   =   image.height;   
	}   
	//ImgD.alt   =   image.width+"¡Á"+image.height;   
	}   
  else{   
	if(image.height>heightD   ||   image.height<heightD){       
	ImgD.height   =   heightD;   
	ImgD.width   =   (image.width*heightD)/image.height;             
	}else{   
	ImgD.width   =   image.width;       
	ImgD.height   =   image.height;   
	}   
	//ImgD.alt   =   image.width+"¡Á"+image.height;   
	}   
  }   
}