function DrawImage(MyPic,W,H){
  var flag=false;
  var image=new Image();
  image.src=MyPic.src;
  if(image.width>0 && image.height>0){
    flag=true;
    if(image.width/image.height>= W/H){
      if(image.width>W){
        MyPic.width=W;
        MyPic.height=(image.height*W)/image.width;
      }
	  else{
        MyPic.width=image.width;
        MyPic.height=image.height;
      }
    }
    else{
      if(image.height>H){
        MyPic.height=H;
        MyPic.width=(image.width*H)/image.height;
      }
	  else{
        MyPic.width=image.width;
        MyPic.height=image.height;
      }
    }
  }
}
function $(id){
    return document.getElementById(id);
}
function pucker_show(amount,showname,clickname,nomber,hiddenclassname,showclassname,clickclass,noclickclass) {
    //amount:标签总数量
	//showname:要显示的区块命名前缀
	//clickname:点击区块的命名前缀
    //nomber:当前鼠标所处对象的序号
    //showclassname:展开状态样式名
    //hiddenclassname:折叠状态样式名
	//clickclass:选择的区块样式
	//noclickclass:未选择的区块样式
    for (var i=1; i<amount; i++ )
    {
        $(showname + i).className = hiddenclassname;
		$(clickname + i).className = noclickclass;
    }
    $(showname + nomber).className = showclassname;
	$(clickname + nomber).className = clickclass;
}