// JScript 文件   联想搜索

function checkSearch(){
    var n=0;
    for(var i=0;i<SearchRadio.options.length;i++)
    {
        if(SearchRadio.options[i].selected)
            n=i+1;
    }
    switch(n){
        case 1:
            layExpert.style.display = "block";
            layCourse.style.display = "none";
            layVideo.style.display = "none";
            layCourseware.style.display = "none";
            hotKeyWords.innerHTML = expertKeyWord;            
            break;
        case 2:
            layExpert.style.display = "none";
            layCourse.style.display = "block";
            layVideo.style.display = "none";
            layCourseware.style.display = "none";
            hotKeyWords.innerHTML = courseKeyWord;
            break;
        case 3:
            layExpert.style.display = "none";
            layCourse.style.display = "none";
            layVideo.style.display = "block";
            layCourseware.style.display = "none";
            hotKeyWords.innerHTML = videoKeyWord;
            break;
        case 4:
            layExpert.style.display = "none";
            layCourse.style.display = "none";
            layVideo.style.display = "none";
            layCourseware.style.display = "block";
            hotKeyWords.innerHTML = coursewareKeyWord;
            break; 
        default:break;
    }
}

function setTextBoxValue(objTxt){
    textExpert.value = objTxt.value;
    textCourse.value = objTxt.value;
    textVideo.value = objTxt.value;
    textCourseware.value = objTxt.value;
    
    if(objTxt.value.Trim() == ""){
       textExpert.value = "请输入专家姓名、关键词，或您想解决的问题";
       textCourse.value = "请输入课程关键词，或您想解决的问题";
       textVideo.value = "请输入视频关键词，或您想解决的问题";
       textCourseware.value = "请输入课件关键词，或您想解决的问题";
    }
}

function clearTextBoxValue(objTxt){
    if(objTxt.value == "请输入专家姓名、关键词，或您想解决的问题" || 
       objTxt.value == "请输入课程关键词，或您想解决的问题" ||
       objTxt.value == "请输入视频关键词，或您想解决的问题" ||
       objTxt.value == "请输入课件关键词，或您想解决的问题"){
        objTxt.value = "";
    }
}

function setOldValue(_type, objTxt){
    if(objTxt.value == ""){
        switch(_type)
        {
            case 2:
                objTxt.value = "请输入课程关键词，或您想解决的问题";
                break;
            case 3:
                objTxt.value = "请输入视频关键词，或您想解决的问题";
                break;
            case 4:
                objTxt.value = "请输入课件关键词，或您想解决的问题";
                break;
            default:
                objTxt.value = "请输入专家姓名、关键词，或您想解决的问题";
                break;
        }
    }
}

function submitInfo(){
    if(SearchRadio.options[0].selected){
        if(textExpert.value == "请输入专家姓名、关键词，或您想解决的问题" || textExpert.value==""){
           textExpert.value="";textExpert.focus();return false;
    }}else if(SearchRadio.options[1].selected){
        if(textCourse.value == "请输入课程关键词，或您想解决的问题" || textCourse.value==""){
           textCourse.value="";textCourse.focus();return false;
    }}else if(SearchRadio.options[2].selected){
        if(textVideo.value == "请输入视频关键词，或您想解决的问题" || textVideo.value==""){
           textVideo.value="";textVideo.focus();return false;
    }}else{
        if(textCourseware.value == "请输入课件关键词，或您想解决的问题" || textCourseware.value==""){
           textCourseware.value="";textCourseware.focus();return false;
    }}        
    return true;
}

function setcheckValue(){
    clearTextBoxValue(textExpert);
    clearTextBoxValue(textCourse);
    clearTextBoxValue(textVideo);
    clearTextBoxValue(textCourseware);
    
    if(textExpert.value != "")
        setTextBoxValue(textExpert);
    else if(textCourse.value != "")
        setTextBoxValue(textCourse);
    else if(textVideo.value != "")
        setTextBoxValue(textVideo);
    else if(textCourseware.value != "")
        setTextBoxValue(textCourseware);
}