模仿combox(select)控件，不用為美化select煩惱了。

2020-10-23 18:47:10

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不用整天為美化select控件煩惱了。

1、可批量美化select控件。
2、可以有onchange句柄。
3、觸發onchange的函數可帶參數。
3、可以得到select的值。
4、可設置像select類似的滾動條（如大于或等于8個數目時出現滾動條）
5、可設置寬度和高度

API參考：
//首先生成一個simulateSelect的實例
//構造函數的第一個可選參數為觸發onchange的函數，其它的為onchange函數的參數；
c = new simulateSelect(s1onchange, "never-online");
//設置select的CSS，第一個參數為控件的主要CSS、第二個為選中條目時的CSS、第三個為沒有選中條目時的CSS
c.style("CtlSelect2", "selected2", "unselected2");
//設置select的寬度和高度；
c.width = 320;
c.height = 20;
//初始化參數為：select控件的ID，可以用逗號分離，進行批量轉換；
c.init("s1,s2,s3");

下一版本將可修改combox

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML> <HEAD> <TITLE> simulate combox control - http://www.never-online.net </TITLE> <META NAME="Generator" CONTENT="EditPlus"> <meta name="author" content="http://www.survivalescaperooms.com/"/> <META NAME="Keywords" CONTENT=""> <META NAME="Description" CONTENT=""> <style> body, input {     font-family: verdana;     font-size: 9pt; } h1 {     font-family: tahoma;     font-size: 22pt;     text-align: left; } pre {     font-size: 9pt;     font-family: verdana;     border: 1px solid #006600;     width: 400px;     padding: 10px;     background: #ffffff;     color: #006600; } .CtlSelect {     border: 1px solid #006600;     font-family: verdana;     height: 20px;     color: #006600;     background: #ffffff;     /*background:url({E5066804-650D-4757-9BA4-A92DB8817A18}0.jpg);*/ } .selected {     background: #006600;     color: #ffffff;     height: 20px; } .unselected {     height: 20px;     color: #006600;     line-height: 120%;     border-bottom: 1px solid #006600; } .CtlSelect1 {     border: 1px solid #003399;     font-family: verdana;     height: 20px;     color: #003399;     background: #ffffff;     /*background:url({E5066804-650D-4757-9BA4-A92DB8817A18}0.jpg);*/ } .selected1 {     background: #003399;     color: #ffffff;     height: 20px; } .unselected1 {     height: 20px;     color: #003399;     line-height: 120%;     border-bottom: 1px solid #003399; } .CtlSelect2 {     border: 1px solid #990000;     font-family: verdana;     height: 20px;     color: #990000;     background: #ffffff;     /*background:url({E5066804-650D-4757-9BA4-A92DB8817A18}0.jpg);*/ } .selected2 {     background: #990000;     color: #ffffff;     height: 20px; } .unselected2 {     height: 20px;     color: #990000;     line-height: 120%;     border-bottom: 1px solid #990000; } .copyright {     margin-top: 10px;     font-size: 9pt;     text-align: center;     color: #333;     font-weight: bold; } </style> </HEAD> <BODY> <SCRIPT LANGUAGE="JavaScript"> <!-- //------------------------------------------------------------- //  @ Module: simulate select control, IE only. //  @ Debug in: IE 6.0 //  @ Script by: blueDestiny, never-online //  @ Updated: 2006-3-22 //  @ Version: 1.0 apha //  @ Email: blueDestiny [at] 126.com //  @ Website: http://www.never-online.net //  @ Please Hold this item please. // //  API //  @ class: simulateSelect() // //  @ object.style(ctlStyle[,selStyle][,unselStyle]) //    ctlStyle: main control combox css class name //    selStyle: when mouseover or option focus css class name //    unselStyle: options blur's css class name // //  @ object.width=(widthPX) //    widthPX must be a digit number. // //  @ object.height=(heightPX) //    heightPX must be a digit number. // //  @ object.getValue(ctlSelID) //    ctlSelID is the unique select control ID // //  -------------- for the next Version ---------- //  @ object.readOnly = (blnReadOnly) //    blnReadOnly must be a boolean type or a number type. //  @ object.addEvent(w, h) //    w: fire handler's event. //    h: handler function. //------------------------------------------------------------- function $(objID) {     return document.getElementById(objID); }; function Offset(e) {     var t = e.offsetTop;     var l = e.offsetLeft;     var w = e.offsetWidth;     var h = e.offsetHeight-2;     while(e=e.offsetParent)     {         t+=e.offsetTop;         l+=e.offsetLeft;     }     return {         top : t,         left : l,         width : w,         height : h     } } //----------------------------------------------- function simulateSelect(handlerFunction) { with(this) {     this.IDs = [];     this.name = this;     this.value = null;     this.onchangeArgs = [];     this.onchange = handlerFunction;     this.height = 20;     this.width = null;     this.number = null;     this.ctlStyle = "CtlSelect";     this.selStyle = "selected";     this.unselStyle = "unselected";     this.elementPrefix = "e__";     this.inputPrefix = "i__";     this.containerPrefix = "c__";     this.buttonPrefix = "b__";     //  property for beta Version     //  can editable combox     this.readonly = true;     if( arguments.length>0 )     for(var i=0; i0 )     {         var arrCtlSel = ctlSelIDs.split(",");         for(var i=0; i-1 ||      el.id.indexOf(inputPrefix)>-1 ||      el.id.indexOf(containerPrefix)>-1 ||      el.id.indexOf(buttonPrefix)>-1 )     {         return;     }     else     {         for(var i=0; i<eval(name).IDs.length; i++)         if( $(containerPrefix + IDs[i]) )         $(containerPrefix + IDs[i]).style.display = "none";     } }}; simulateSelect.prototype.simulates = function() { with(this) {     for(var i=0; i<IDs.length; i++)     eval(name).simulate(IDs[i]); }}; simulateSelect.prototype.simulate = function(ctlSelID) { with (this) {     var input;     var button;     var object;     var offset;     object = $(ctlSelID);     offset = Offset(object);     input = document.createElement("INPUT");     button = document.createElement("BUTTON");     button.setAttribute("id", buttonPrefix + ctlSelID);     //button.value = "<footer>
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模仿combox(select)控件，不用為美化select煩惱了。