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

              }     
      }     
}