實(shí)現(xiàn)功能說明：

1）登陸后設(shè)置提示第一個(gè)有效值為默認(rèn)值；2）實(shí)現(xiàn)自動(dòng)提交

（模擬自動(dòng)提交）；3）僅能選擇一個(gè)有效提示值，即選擇數(shù)據(jù)項(xiàng)名稱和‘-------’無效。

實(shí)現(xiàn)方法：

1）在下值提示前后各加一個(gè)html項(xiàng)目，

內(nèi)容分別為：<span id="spanidName">

與 </span>

　　　注意：span id內(nèi)容根據(jù)實(shí)際設(shè)置。如附件圖片“值提示”。

此例中，我共有3個(gè)值提示，其中電壓等級(jí)與站是級(jí)聯(lián)關(guān)系，電壓等級(jí)層級(jí)高于站：

<span id='spanidYear'>年份提示</span>

<span id='spanidStation'>站提示</span>

<span id='spanidVoltage'>電壓等級(jí)提示</span>

2）　添加一個(gè)完成按鈕。（此按鈕最終會(huì)被隱藏，代碼控制其提交）

3）　將所有提示的自動(dòng)提交取消！

4）

在頁面加一個(gè)html項(xiàng)目，內(nèi)容如下：

<script. language="javascript">

//全局變量

var spanYear;

var selectYear;

var selectIndexYear;

var spanStation;

var selectStation

var selectIndexStation;

var spanVoltage;

var selectVoltage;

var selectIndexVoltage;

//獲取頁面值提示對(duì)象

function getSpanInfo(){

spanYear = document.getElementById("spanidYear");//The same name as the span id.set for year prompt

selectYear = spanYear.getElementsByTagName("select");

selectIndexYear=selectYear[0].selectedIndex;

spanStation = document.getElementById("spanidStation");//The same name as the span id.set for station prompt

selectStation = spanStation.getElementsByTagName("select");

selectIndexStation=selectStation[0].selectedIndex;

spanVoltage = document.getElementById("spanidVoltage");//The same name as the span id.set for voltage prompt

selectVoltage = spanVoltage.getElementsByTagName("select");

selectIndexVoltage=selectVoltage[0].selectedIndex;

}

//初始化頁面

function initOnLoad()

{

getSpanInfo();

if(selectIndexYear==0||selectIndexYear==1)

{ selectVoltage[0].selectedIndex=2;

selectYear[0].selectedIndex=2;

//selectStation[0].selectedIndex=2;

if(getFormWarpRequest().elements["cv.id"].value=="RS")

{

setTimeout('oCVRS.promptAction(\'finish\')',100); //延遲一定時(shí)間很重要，否則會(huì)報(bào)錯(cuò)

}else

setTimeout('oCV_NS_.promptAction(\'finish\')',100);

}

}

//年提示值變化（onchange事件）調(diào)用

function validateSelectYear()

{ getSpanInfo();

if (selectIndexYear==0 || selectIndexYear==1){

//no response

}

else

{

promptButtonFinish(); // Currently equivalent to oCV<namespace>.promptAction('finish')

}

}

//站提示值變化（onchange事件）調(diào)用

function validateSelectStation()

{ getSpanInfo();

if (selectIndexStation==0 || selectIndexStation==1){

//no response

}

else

{

if(selectIndexYear ==0 || selectIndexYear ==1){

selectYear[0].selectedIndex=2;

}

promptButtonFinish(); // Currently equivalent to oCV<namespace>.promptAction('finish')

}

}

//電壓等級(jí)提示值變化（onchange事件）調(diào)用

function validateSelectVoltage()

{ getSpanInfo();

if (selectIndexVoltage==0 || selectIndexVoltage==1){

//no response

}

else

{

if(selectIndexYear ==0 || selectIndexYear ==1){

selectYear[0].selectedIndex=2;

}

if(selectIndexStation!=0 && selectIndexStation!=1){

selectStation[0].selectedIndex=0;

}

promptButtonFinish(); // Currently equivalent to oCV<namespace>.promptAction('finish')

}

}

//頁面初始加載

document.forms[0].onload=initOnLoad();

var fW = (typeof getFormWarpRequest == "function" ?getFormWarpRequest() : document.forms["formWarpRequest"]);

if ( !fW || fW == undefined)

{

fW = ( formWarpRequest_THIS_ ?formWarpRequest_THIS_ : formWarpRequest_NS_ );

}

var buttons = fW.getElementsByTagName("BUTTON");

for (var i=0; i<buttons.length; i++)

{

if (buttons[i].id.indexOf('finish') == 0) // The finish button ID starts with finish. ie: id="finishN0D5D2148x0C6BEFD0_NS_"

{

if (buttons[i].onclick.toString().indexOf('finish') > 0) //oCV_NS_.promptAction('finish')

{

//buttons[i].onclick = ValidatePage;

buttons[i].style.display="none";

}

}

}

//設(shè)置onchange事件

getSpanInfo()

selectYear[0].onchange=validateSelectYear;

selectStation[0].onchange=validateSelectStation;

selectVoltage[0].onchange=validateSelectVoltage;