function switchTag(tag,content,con)
{
    for(i=1; i <5; i++)
    {
       if ("content"+i==content || "con"+i==con)
       {
        document.getElementById(content).className="";
        document.getElementById(con).className="";
       }
       else
       {
        document.getElementById("content"+i).className="top_1_2_2_2_2_1";
        document.getElementById("con"+i).className="top_1_2_2_2_2_1";
       }
    }
}
function ly(i)
{
    if(i==1)
    {
        var s = document.getElementById("TextBox1").value;
        if(s==" 请输入您要查询旅游线路名称")
        {
            document.getElementById("TextBox1").value="";
            document.getElementById("TextBox1").style.color ='Black';
        }
        else
        {
            document.getElementById("TextBox1").style.color ='Black';
        }
    }
    if(i==2)
    {
        
        var s = document.getElementById("TextBox1").value;
        if(s=="" || s==null || s==" ")
        {
            document.getElementById("TextBox1").value=" 请输入您要查询旅游线路名称";
            document.getElementById("TextBox1").style.color ='#686868';
        }
        else
        {
            document.getElementById("TextBox1").style.color ='Black';
        }
    }
}
function jq(i)
{
    if(i==1)
    {
        var s = document.getElementById("TextBox2").value;
        if(s==" 请输入您要查询新闻资讯名称")
        {
            document.getElementById("TextBox2").value="";
            document.getElementById("TextBox2").style.color ='Black';
        }
        else
        {
            document.getElementById("TextBox2").style.color ='Black';
        }
    }
    if(i==2)
    {
        var s = document.getElementById("TextBox2").value;
        if(s=="" || s==null || s==" ")
        {
            document.getElementById("TextBox2").value=" 请输入您要查询新闻资讯名称";
            document.getElementById("TextBox2").style.color ='#686868';
        }
        else
        {
            document.getElementById("TextBox2").style.color ='Black';
        }
    }
}