/*第一种形式 第二种形式 更换显示样式*/
function setTab(name,cursel,n){
 for(i=1;i<=n;i++){
  var menu=document.getElementById(name+i);
  var con=document.getElementById("con_"+name+"_"+i);
  menu.className=i==cursel?"hover":"";
  con.style.display=i==cursel?"block":"none";
 }
}
//-->

var flag=false; 
function DrawImage(ImgD){ 
 var image=new Image(); 
 image.src=ImgD.src; 
 if(image.width>0 && image.height>0){ 
  flag=true; 
  if(image.width/image.height>= 100/60){ 
   if(image.width>100){
    ImgD.width=100; 
    ImgD.height=(image.height*100)/image.width; 
   }
   else{ 
    ImgD.width=image.width;
    ImgD.height=image.height; 
   } 
   ImgD.alt= "点击查看详细案例..."; 
  } 
  else{ 
   if(image.height>60){
    ImgD.height=60; 
    ImgD.width=(image.width*60)/image.height; 
   }
   else{ 
    ImgD.width=image.width;
    ImgD.height=image.height; 
   } 
   ImgD.alt= "点击查看详细案例..."; 
  } 
 }
}