模仿combox(select)控件，不用为美化select烦恼了。

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不用整天为美化select控件烦恼了。

1、可批量美化select控件。
2、可以有onchange句柄。
3、触发onchange的函数可带参数。
3、可以得到select的值。
4、可设置像select类似的滚动条（如大于或等于8个数目时出现滚动条）
5、可设置宽度和高度

API参考：
//首先生成一个simulateSelect的实例
//构造函数的第一个可选参数为触发onchange的函数，其它的为onchange函数的参数；
c = new simulateSelect(s1onchange, "never-online");
//设置select的CSS，第一个参数为控件的主要CSS、第二个为选中条目时的CSS、第三个为没有选中条目时的CSS
c.style("CtlSelect2", "selected2", "unselected2");
//设置select的宽度和高度；
c.width = 320;
c.height = 20;
//初始化参数为：select控件的ID，可以用逗号分离，进行批量转换；
c.init("s1,s2,s3");

下一版本将可修改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=""> <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">  </SCRIPT> <h1> simulate combox control </h1> <h4> demonstrate </h4> <p> normal select: <select id="s0"> <option value="- please select your options -"> - please select your options -</option> <option value="1">option1</option> <option value="2">option2</option> <option value="3">option3</option> <option value="4">option4</option> <option value="5">option5</option> </select> </p> <p> simulate select: <select id="s1"> <option value="- please select your options -"> - please select your options -</option> <option value="1">1option1</option> <option value="2">1option2</option> <option value="3">1option3</option> <option value="4">1option4</option> <option value="5">1option5</option> </select> </p> <p> scroll simulate select: <select id="s2"> <option value="- please select your options -"> - please select your options -</option> <option value="1">2option1</option> <option value="2">2option2</option> <option value="3">2option3</option> <option value="4">2option4</option> <option value="5">2option6</option> <option value="5">2option7</option> <option value="5">2option8</option> <option value="5">2option9</option> <option value="5">2option10</option> <option value="5">2option11</option> <option value="5">2option12</option> <option value="5">2option13</option> <option value="5">2option14</option> </select> </p> <p> onchange handler fire: <select id="s3"> <option value="- please select your options -"> - please select your options -</option> <option value="1">3option1</option> <option value="2">3option2</option> <option value="3">3option3</option> <option value="4">3option4</option> <option value="5">3option5</option> </select> </p> <button onclick="alert(a.getValue('s1') + '\n\n' + b.getValue('s2') + '\n\n' + c.getValue('s3'))" class="CtlSelect"> Get value </button> <button onclick="alert('next version')"  class="CtlSelect">append item</button> <button onclick="alert('next version')"  class="CtlSelect">remove item</button> <h4> description </h4> <pre> //------------------------------------------------------------- //  @ 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. //------------------------------------------------------------- </pre> <div class="copyright"> Power By blueDestiny, never-online http://www.never-online.net </div> </BODY> </HTML>

[Ctrl+A 全选注:引入外部Js需再刷新一下页面才能执行]