//ͼƬµÈ±ÈÀýËõ·Å
function DrawImage(ImgD,FitWidth,FitHeight)
{ 
 var image=new Image();  
    image.src=ImgD.src;
    if(image.width>0 && image.height>0)
    { 
            if(image.width/image.height>= FitWidth/FitHeight)
            {  
            if(image.width>FitWidth)
            { 
             ImgD.width=FitWidth;
             ImgD.height=(image.height*FitWidth)/image.width;}
             else
             {
             ImgD.width=image.width;
             ImgD.height=image.height;
             }
             }
            else{
            if(image.height>FitHeight)
            {
            ImgD.height=FitHeight;
            ImgD.width=(image.width*FitHeight)/image.height;
            }
            else
            {
            ImgD.width=image.width;
            ImgD.height=image.height;
            }
            }
      }


} 

var defaultNewProductTabId=0;
  var defaultFriendRecommendTabId=0;
  function changeHotProductTab(prefix,id)
  {
  for(var i=1;i<=3;i++)
  {
  document.getElementById(prefix+"_tab"+i).className=prefix+"_tab2";
  document.getElementById(prefix+"_content_"+i).style.display="none";
  }
  document.getElementById(prefix+"_tab"+id).className=prefix+"_tab1";
  document.getElementById(prefix+"_content_"+id).style.display="";
  }
  function changeNewProductTab(id)
  {
  if(id!=defaultNewProductTabId)
  {
  document.getElementById("newproduct_tab_"+id).className="default_tab1";
  document.getElementById("newproduct_content_"+id).style.display="";
  document.getElementById("newproduct_tab_"+defaultNewProductTabId).className="default_tab2";
  document.getElementById("newproduct_content_"+defaultNewProductTabId).style.display="none";
  defaultNewProductTabId=id;
  }
  }
  function changeFriendRecommend(id)
  {
  if(id!=defaultFriendRecommendTabId)
  {
  document.getElementById("friendlyRecommend_tab_"+id).className="default_tab1";
  document.getElementById("friendlyRecommend_content_"+id).style.display="";
  document.getElementById("friendlyRecommend_tab_"+defaultFriendRecommendTabId).className="default_tab2";
  document.getElementById("friendlyRecommend_content_"+defaultFriendRecommendTabId).style.display="none";
  defaultFriendRecommendTabId=id;
  }
  }
  function changeLeftTopTab(id)
  {
  var oldId=id==1?2:1;
  document.getElementById("leftTopTab"+id).className="tag_bg3";
  document.getElementById("leftTopTab"+oldId).className="tag_bg3_";
  document.getElementById("leftTopContent_"+id).style.display="";
  document.getElementById("leftTopContent_"+oldId).style.display="none";
  }
  
var defaultRightTopTabId=1;
function changeRightTop(id)
{
if(id!=defaultRightTopTabId)
{
document.getElementById("rightTopTab_"+id).className="tag_bg3";
document.getElementById("rightTopTab_"+defaultRightTopTabId).className="tag_bg3_";
document.getElementById("rightTopContent_"+id).style.display="";
document.getElementById("rightTopContent_"+defaultRightTopTabId).style.display="none";
defaultRightTopTabId=id;
}
}