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js 二級聯動菜單

*Write by:惠萬鵬

*Time :2008-09-01

*vision :1.0

//-------------------------------------------------------------------------

//a function of inint a select

var GangSelect = {

/**

*Description : this function initiates select of object

__initiateSelect : function(aValueTexts, oSelect, sInitValue, isSort)

{

if (isSort)

{

aValueTexts.sort();

}

/** remove all options of select of object */

oSelect.length = 0;

for (var i = 0; i < aValueTexts.length; i = i + 1)

{

var sValue = aValueTexts[i].substring(0,

aValueTexts[i].indexOf(":"));

var sText = aValueTexts[i].substring(

aValueTexts[i].indexOf(":") + 1, aValueTexts[i].length);

/** create element of option */

var oOption = document.createElement("option");

oOption.value = sValue;

/** initiates a option*/

if (sValue == sInitValue)

{

oOption.selected = true;

}

var oText = document.createTextNode(sText);

oOption.appendChild(oText);

oSelect.appendChild(oOption);

}

/**

*this function of initiates the first select

__initFirtSelect : function(sFirstValueTexts,

sInitiateFirstSelectValue, sFirstSelectId)

{

var aFirstValueTexts = sFirstValueTexts.split('|');

aFirstValueTexts.unshift('-1:請選擇');

var oFirstSelect = obj$(sFirstSelectId);

/** initiates select */

this.__initiateSelect(aFirstValueTexts, oFirstSelect,

sInitiateFirstSelectValue, false);

/**

*this function of init the second select

__initSecondSelect : function(sSecondValueTexts,

sInitiateSecondSelectValue, sFirstSelectId, sSecondSelectId)

{

var sFirstSelectedValue = obj$(sFirstSelectId).value;

var aTemp = new Array();

var aSecondValueTexts = sSecondValueTexts.split('|');

for (var k = 0; k < aSecondValueTexts.length; k = k + 1)

{

if (aSecondValueTexts[k].split('_')[0] == sFirstSelectedValue)

{

aTemp.push(aSecondValueTexts[k]);

}

aTemp.unshift('-1:請選擇');

var oSecondSelect = obj$(sSecondSelectId);

this.__initiateSelect(aTemp, oSecondSelect,

sInitiateSecondSelectValue, false);

//this function of use in big select's onchange event

Change : function (sSecondValueTexts,sFirstSelectId,sSecondSelectId)

{

this.__initSecondSelect(sSecondValueTexts,"NOVALUE",

sFirstSelectId, sSecondSelectId);

//this function of init the big and small select

Initiate : function(sFirstValueTexts,sSecondValueTexts,sFirstSelectId,

sSecondSelectId,sInitiateFirstSelectValue, sInitiateSecondSelectValue)

{

var initiateFirstValue = 'NOVALUE';

var initiateSecondValue = 'NOVALUE';

if(arguments.length == 5)

{

initiateFirstValue = sInitiateFirstSelectValue;

}

else if(arguments.length == 6)

{

initiateFirstValue = sInitiateFirstSelectValue;

initiateSecondValue = sInitiateSecondSelectValue;

}

this.__initFirtSelect(sFirstValueTexts,

sInitiateFirstSelectValue,sFirstSelectId);

this.__initSecondSelect(sSecondValueTexts,sInitiateSecondSelectValue,

sFirstSelectId,sSecondSelectId);

}

};

posted on 2008-09-02 13:46 HUIKK 閱讀(814) 評論(1) 編輯收藏所屬分類: JavaScript

var departmentIdNames = ":------請選擇-----|1:部門1|2:部門2";
var positionIdNames = "_:------請選擇-----|1_1:職位1|1_2:職位2|2_1:職位4|2_2:職位4|2_2:職位5";
function changePosition()
{
GangSelect.Change(positionIdNames,"department","position");
}
GangSelect.Initiate(departmentIdNames,positionIdNames,'department','position','',''); 回復更多評論

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