select|控件
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"><!--//-------------------------------------------------------------// @ 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 comboxthis.readonly = true;if( arguments.length>0 )for(var i=0; i<arguments.length; i++)onchangeArgs[i-1] = arguments[i];return this;}};simulateSelect.prototype.init = function(ctlSelIDs) { with(this){eval(name).append(ctlSelIDs);eval(name).simulates();}};simulateSelect.prototype.style = function() { with(this){ctlStyle = arguments[0];selStyle = arguments[1];unselStyle = arguments[2];}};//-----------------------------------------------simulateSelect.prototype.append = function(ctlSelIDs) { with(this){if( ctlSelIDs.indexOf(",")>0 ){var arrCtlSel = ctlSelIDs.split(",");for(var i=0; i<arrCtlSel.length; i++){IDs.push(arrCtlSel[i]);}}elseIDs.push(ctlSelIDs);}};simulateSelect.prototype.checkupOnMouseDown = function(e) { with(this){// here compatible mf.var el = e ? e.srcElement : e.target;if( el.id.indexOf(elementPrefix)>-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 = "⊿";button.value = "6";button.style.fontFamily = "Webdings, Marlett";button.style.background = "";button.onclick = input.onclick = function(){this.blur();eval(name).expand(ctlSelID, offset);};input.onselectstart = function(){eval(name).expand(ctlSelID, offset);event.returnValue = false; };input.setAttribute("id", inputPrefix + ctlSelID);input.title = button.title = "click expand options";input.style.cursor = button.style.cursor = "default";input.className = button.className = ctlStyle;input.style.width = (width>0 ? 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==$(inputPrefix + ctlSelID).value )div.className = selStyle;elsediv.className = unselStyle;div.innerText = div.title = object[i].text;div.style.height = height;div.setAttribute("value", object[i].value);div.onmouseover = function(){for(var j=0; j<$(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( $(containerPrefix + ctlSelID).style.display=="none" ){for(var i=0; i<object.length; i++){if( object[i].text==$(inputPrefix + ctlSelID).value )$(elementPrefix + ctlSelID + i).className = selStyle;else$(elementPrefix + ctlSelID + i).className = unselStyle;}$(containerPrefix + ctlSelID).style.display="block";return;}if( $(containerPrefix + ctlSelID).style.display=="block" ){$(containerPrefix + ctlSelID).style.display="none";return;}}};simulateSelect.prototype.getValue = function(ctlSelID) { with(this){if( $(inputPrefix + ctlSelID) )return $(inputPrefix + ctlSelID).value;elsereturn null;}};simulateSelect.prototype.addEvent = function(w, h) { with(this){}};//-----------------------------------------------//window.onerror = Function("return true;");// IE only.document.attachEvent("onmousedown", function() {a.checkupOnMouseDown(event);b.checkupOnMouseDown(event);c.checkupOnMouseDown(event)});window.attachEvent("onload", function() {window.a = new simulateSelect();a.style("CtlSelect", "selected", "unselected");a.init("s1");//-------------------------------------------window.b = new simulateSelect();b.style("CtlSelect1", "selected1", "unselected1");b.width = 300;b.number = 9;b.init("s2");//-------------------------------------------window.c = new simulateSelect(s1onchange, "never-online", a.getValue('s1'));c.style("CtlSelect2", "selected2", "unselected2");c.width = 320;c.init("s3");});function s1onchange(para, s){alert("onchage handler fire " + para + s);}//--></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 class="CtlSelect"> Get value </button><button class="CtlSelect">append item</button><button 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-onlinehttp://www.never-online.net</div></BODY></HTML>
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