var flag=false; 

function DrawImagepop(ImgD){ 

 var image=new Image(); 

 image.src=ImgD.src; 

 if(image.width>0 && image.height>0){ 

  flag=true; 

  if(image.width/image.height>= 120/80){ 

   if(image.width>120){

    ImgD.width=120; 

    ImgD.height=(image.height*120)/image.width; 

   }else{ 

    ImgD.width=image.width;

    ImgD.height=image.height; 

   } 



  } 

  else{ 

   if(image.height>80){

    ImgD.height=80; 

    ImgD.width=(image.width*80)/image.height; 

   }else{ 

    ImgD.width=image.width;

    ImgD.height=image.height; 

   } 



  } 

 }

}