效果圖

example.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gbk" /> <title>example</title> <script type="text/javascript" src="js/jquery.js"></script> <link rel="stylesheet" type="text/css" href="js/selectBox/selectBox.css"/> <script type="text/javascript" src="js/selectBox/selectBox.js"></script> <script> $().ready(function(){ $("#room").change(function(){alert("changed");}); $("select").selectBox(); }); </script> <style> body{font-size:14px} </style> </head> <body> <select name="room" id="room"> <option value="">è«‹é¸æ“‡</option> <option value="0">0</option> <option value="1">1</option> <option value="2" selected>2</option> <option value="3">3</option> <option value="4">4</option> <option value="5">5</option> <option value="6">6</option> <option value="7">7</option> <option value="8">8</option> <option value="9">9</option> </select> <label>A</label> <select name="hall"> <option value="">è«‹é¸æ“‡</option> <option value="0">0</option> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option> <option value="5">5</option> </select> <label>B</label> <select name="toilet"> <option value="">è«‹é¸æ“‡</option> <option value="0">0</option> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option> <option value="5">é•·å—符串長å—符串</option> </select> <label>C</label> </body> </html>
selectBox.js
;(function($) { $.fn.extend({ "selectBox":function(value){ //= var $this=this; var jQuerySelectBoxCount=1; var hideDragDown=function(){ $(".jQuerySelectBox .options").css("display","none") }; $this.each(function(){ jQuerySelectBoxCount++; var d=new Date(); var id="jQuerySelectBox"+d.getSeconds()+"_"+d.getMilliseconds()+"_"+jQuerySelectBoxCount; var jQuerySelectBox=$("#"+id); var original=$(this); original.css("display","none"); var e="<div class='jQuerySelectBox' id='"+id+"'></div>"; $(e).insertAfter(original); var current=$("<div class='current' index='0'> </div>").appendTo("#"+id); var opts=$("<div class='options'></div>").appendTo("#"+id); var down=$("<div class='down'></div>").appendTo("#"+id); var dragDown=function(){//drag down the options if($("#"+id+" .options").css("display")!="block"){ hideDragDown(); $("#"+id+" .options").css({ display : "block", top : $("#"+id).offset().top+$("#"+id).height(), left : $("#"+id).offset().left, width : $("#"+id).width() }); $("#"+id+" .options .option[index='"+current.attr("index")+"']").addClass("selected"); }else{ hideDragDown(); } }; $(down).click(dragDown); $(current).click(dragDown); var options=original.children("option"); var o; for(var i=0;i<options.length;i++){ o=original.find("option[index='"+i+"']"); var option="<div class='option' val='"+o.attr("value")+"' index='"+i+"'>"; option+=o.text(); option+="</div>"; var opt=$(option).appendTo(opts); if(o.attr('selected')==true){//selected option opt.addClass("selected"); $(current).html(o.text()); $(current).attr("index",i); } opt.click(function(){ current.html($(this).text()); if(current.attr("index")!=$(this).attr("index")){//if change current.attr("index",$(this).attr("index")); $(original).change();//invoke orignal select onchange } original.find("option[index='"+$(this).attr("index")+"']").attr("selected",true); $(this).addClass("selected"); hideDragDown(); }); opt.mouseover(function(){ $(".jQuerySelectBox .options .option").removeClass("selected"); $(this).addClass("selected"); }); opt.mouseout(function(){ $(this).removeClass("selected"); }); } $(current).width(opts.width()); $("#"+id).width(opts.width()+down.width()+2); }); //= } }); })(jQuery);
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