//图片轮换
var k=1;
function ChangeImage(i)
{
    for(j=1;j<=4;j++)
    {
        document.getElementById("ads"+j).style.display="none";
        document.getElementById("btn"+j).style.background="#FFFFFF";
        document.getElementById("btn"+j).style.color="#FF9933";
    }
    document.getElementById("ads"+i).style.display="block";
    document.getElementById("btn"+i).style.background="#FF9933";
    document.getElementById("btn"+i).style.color="#FFFFFF";
}
function ChangeImage1()
{
    ChangeImage(k);
    k++;
    if(k>4)
    {
        k=1;
    }
    setTimeout("ChangeImage1()",3000);
}



function Search() 
{
    if(form3.keyword.value!=""&&form3.keyword.value!=null)
    {
        window.open("search.aspx?keyword="+encodeURIComponent(form3.keyword.value)+"&type="+encodeURIComponent(form3.type.value)+"&date="+encodeURIComponent(form3.date.value));
        return false;
    }
}

function Search1() 
{
    if(form_search.keyword.value!="请输入搜索关键词"&&form_search.keyword.value!="")
    {
        location.href="search.aspx?keyword="+encodeURIComponent(form_search.keyword.value);
    }
}


function CleanText()
{
    if(form3.keyword.value=="请输入关键词")
    {
        form3.keyword.value="";
        return false;
    }
}

function CleanText1()
{
    if(form_search.keyword.value=="请输入搜索关键词")
    {
        form_search.keyword.value="";
        return false;
    }
}



function baiduSearch2() 
{
    window.open("http://www.baidu.com/s?tn=sitehao123&word="+form1.keyword.value,"mspg0");
    return false;   
}


//复制网址
function copyToClipBoard(){   
    var clipBoardContent="";   
      clipBoardContent+=this.location.href;   
    window.clipboardData.setData("Text",clipBoardContent);   
    alert("复制成功，请粘贴到你的QQ/MSN上推荐给你的好友");   
}