模仿combox(select)控件，不用为美化select烦恼了。

web前端|css教程

web前端-css教程

不用整天为美化select控件烦恼了。

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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

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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”);

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下一版本将可修改combox

<br /><TITLE> simulate combox control – http://www.never-online.net </TITLE><br /> </p> 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; } <p> </p><p><br />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; i0 ? width : object.offsetWidth);     height ? input.style.height=button.style.height=height : “”;     input.value = value = object[0].text;     if( readonly==true ) input.readOnly=true;     // this method is only IE.     object.insertAdjacentElement(“afterEnd”,button);     object.insertAdjacentElement(“afterEnd”,input);     object.style.display = ‘none’; }}; simulateSelect.prototype.expand = function(ctlSelID, offset) { with(this) {     var div;     var object = $(ctlSelID);     if( !$(containerPrefix + ctlSelID) )     {         div = document.createElement(“DIV”);         div.style.position = “absolute”;         div.style.display = “block”;         div.setAttribute(“id”, containerPrefix + ctlSelID);         div.className = ctlStyle;         div.style.left = offset.left;         div.style.top = offset.top + offset.height;         div.style.width = (width ? width : offset.width) + 20;         if( number )         {             div.style.height = height * number;             div.style.overflow = “auto”;         }         document.body.appendChild(div);         for(var i=0; i<object.length; i++)         {             div = document.createElement("DIV");             div.setAttribute("id", div.id = elementPrefix + ctlSelID + i);             div.style.cursor = "default";             if( object[i].text==$(inputPrefix + ctlSelID).value )             div.className = selStyle;             else             div.className = unselStyle;             div.innerText = div.title = object[i].text;             div.style.height = height;             div.setAttribute("value", object[i].value);             div.onmouseover = function()             { for(var j=0; j<$(containerPrefix + ctlSelID).childNodes.length; j++) {     if($(containerPrefix + ctlSelID).childNodes[j]==this)     $(containerPrefix + ctlSelID).childNodes[j].className = selStyle;     else     $(containerPrefix + ctlSelID).childNodes[j].className = unselStyle; }                     };             div.onclick = function()             { $(inputPrefix + ctlSelID).value = this.innerText; $(containerPrefix + ctlSelID).style.display = "none"; if( onchange && value!=$(inputPrefix + ctlSelID).value ) {     onchange.apply(this,onchangeArgs);     value = $(inputPrefix + ctlSelID).value; }             };             $(containerPrefix + ctlSelID).appendChild(div);         }         return;     }     if( $(containerPrefix + ctlSelID).style.display=="none" )     {         for(var i=0; i<object><br /> </p><h1> simulate combox control </h1><h4> demonstrate </h4><p>normal select:  – please select your options -option1option2option3option4option5</p><p>simulate select:  – please select your options -1option11option21option31option41option5</p><p>scroll simulate select:  – please select your options -2option12option22option32option42option62option72option82option92option102option112option122option132option14</p><p>onchange handler fire:  – please select your options -3option13option23option33option43option5</p><p><button class="CtlSelect"> Get value </button><br /><button class="CtlSelect">append item</button><br /><button class="CtlSelect">remove item</button> </p><h4> description </h4><pre name="colorcode" class="html"> //------------------------------------------------------------- //  @ 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<br />http://www.never-online.net</pre><br />

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