function doClick_down(o)
{
 //o.className="down_current";
 var j;
 var id;
 var e;
 for(var i=1;i<=4;i++){
   id ="down"+i;
   j = document.getElementById(id);
   e = document.getElementById("d_con"+i);
   if(id != o.id){
	 j.style.color="#fefefc";
	 e.style.display = "none";
   }else{
	e.style.display = "block";
	j.style.color="#ff0000";
   }
 }
}
function doClick_down1(o)
{
 //o.className="down_current";
 var j;
 var id;
 var e;
 for(var i=1;i<=4;i++){
   id ="down1"+i;
   j = document.getElementById(id);
   e = document.getElementById("a_con"+i);
   if(id != o.id){
	 j.style.color="#fefefc";
	 e.style.display = "none";
   }else{
	e.style.display = "block";
	j.style.color="#ff0000";
   }
 }
}
function doClick_down2(o)
{
 //o.className="down_current";
 var j;
 var id;
 var e;
 for(var i=1;i<=4;i++){
   id ="down2"+i;
   j = document.getElementById(id);
   e = document.getElementById("b_con"+i);
   if(id != o.id){
	 j.style.color="#fefefc";
	 e.style.display = "none";
   }else{
	e.style.display = "block";
	j.style.color="#ff0000";
   }
 }
}
function doClick_down3(o)
{
 //o.className="down_current";
 var j;
 var id;
 var e;
 for(var i=1;i<=4;i++){
   id ="down3"+i;
   j = document.getElementById(id);
   e = document.getElementById("c_con"+i);
   if(id != o.id){
	j.style.color="#fefefc";
	 e.style.display = "none";
   }else{
	e.style.display = "block";
	j.style.color="#ff0000";
   }
 }
}
function doClick_down5(o)
{
 //o.className="down_current";
 var j;
 var id;
 var e;
 for(var i=1;i<=5;i++){
   id ="down5"+i;
   j = document.getElementById(id);
   e = document.getElementById("e_con"+i);
   if(id != o.id){
	 j.background="images/yeka2.jpg";
	 //j.style.color="#362f27";
	 e.style.display = "none";
   }else{
	e.style.display = "block";
	j.background="images/yeka1.jpg";
	//j.style.color="#ff0000";
   }
 }
}
function showsubmenu(sid)
{
whichEl = eval("submenu" + sid);
imgmenu = eval("imgmenu" + sid);
if (whichEl.style.display == "none")
{
eval("submenu" + sid + ".style.display=\"\";");
imgmenu.background="image/menuup.gif";
}
else
{
eval("submenu" + sid + ".style.display=\"none\";");
imgmenu.background="image/menudown.gif";
}
for(var i=1;i<4;i++)
{
	if(i==sid)continue;
	eval("submenu" + i + ".style.display=\"none\";");
}
}
function CheckForm() {
  if(document.Login.LoginName.value == "") {
    alert("请输入用户名！");
    document.Login.LoginName.focus();
    return false;
  }
  if(document.Login.LoginPassword.value == "") {
    alert("请输入密码！");
    document.Login.LoginPassword.focus();
    return false;
  }
  if (document.Login.CheckCode.value == "") {
    alert ("请输入您的验证码！");
    document.Login.CheckCode.focus();
    return(false);
  }

}
function checkd()
{
	if(document.Search.Keyword.value='')
	{
	alert('输入关键字！');	
	document.Search.Keyword.focus();
	return false;
	}
	
}