/*按比例生成缩略图*/
function DrawImage(ImgD,W,H){ 
  var flag=false; 
  var image=new Image(); 
  image.src=ImgD.src; 
  if(image.width>0 && image.height>0){ 
    flag=true; 
    if(image.width/image.height>= W/H){ 
      if(image.width>W){
        ImgD.width=W; 
        ImgD.height=(image.height*H)/image.width; 
      }
	  else{ 
        ImgD.width=image.width;
        ImgD.height=image.height; 
      } 
      ImgD.alt= ""; 
    } 
    else{ 
      if(image.height>H){
        ImgD.height=H; 
        ImgD.width=(image.width*W)/image.height; 
      }
	  else{ 
        ImgD.width=image.width;
        ImgD.height=image.height; 
      } 
      ImgD.alt=""; 
    } 
  }
}
function check1(obj,menu) {

if (obj.style.display=='none')
 {obj.style.display='block';menu.src="Images/Arrow_08.gif";}
 else
 {obj.style.display='none';menu.src="Images/Arrow_07.gif";}

}
function check(obj,obj1) {
if (obj.style.display=='none')
 {
 obj.style.display='block'
 obj1.className='menu1';
 }else{
 obj.style.display='none'
  obj1.className='menu';
 }}