利用JavaScript更改input中radio和checkbox样式_表单特效

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<style type="text/css"> body { margin: 0px; padding: 0px; font-size: 13px; } .input_style { padding: 6px 0px; width: 600px; margin: 0px auto; border-bottom: #666666 1px dotted; } .input_style span { display: inline-block; width: 15px; height: 15px; text-align: left; vertical-align: middle; _overflow: hidden; } .input_style label { padding: 0px 6px; cursor: pointer; } .input_style input { cursor: pointer; } .checkbox { padding: 0px; list-style: none; width: 600px; margin: 6px auto; height: auto; overflow: hidden; } .checkbox li { padding: 3px 0px; float: left; } h4 { width: 600px; margin: 0px auto; margin-top: 30px; } .button { width: 600px; text-align: center; margin: 0px auto; } </style> <script language="javascript" type="text/javascript"> function getid(id) { return document.getElementById(id); } function gettag(tag, obj) { if (obj) { return obj.getElementsByTagName(tag) } else { return document.getElementsByTagName(tag) } } function addLoadEvent(func) { var oldonload = window.onload; if (typeof window.onload != "function") { window.onload = func; } else { window.onload = function() { oldonload(); func(); } }; } function radio_style() {//3设置样式 if (gettag("input")) { var r = gettag("input"); function select_element(obj, type) {//1设置背景图片 obj.parentNode.style.background = "url(/upload/2009-11/20091124021750277.gif) no-repeat -15px 0px"; if (obj.type == "checkbox") { obj.parentNode.style.background = "url(/upload/2009-11/20091124021750277.gif) no-repeat -15px -15px"; } if (type) { obj.parentNode.style.background = "url(/upload/2009-11/20091124021750277.gif) no-repeat 0px 0px"; if (obj.type == "checkbox") { obj.parentNode.style.background = "url(/upload/2009-11/20091124021750277.gif) no-repeat 0px -15px"; } } } //1 for (var i = 0; i < r.length; i++) { if (r[i].type == "radio" || r[i].type == "checkbox") { r[i].style.opacity = 0; r[i].style.filter = "alpha(opacity=0)";//隐藏真实的checkbox和radio r[i].onclick = function() { select_element(this); unfocus(); } if (r[i].checked == true) { select_element(r[i]); } else { select_element(r[i], 1); } } } function unfocus() {//2处理未选中 for (var i = 0; i < r.length; i++) { if (r[i].type == "radio" || r[i].type == "checkbox") { if (r[i].checked == false) { select_element(r[i], 1) } } } } //2 } } //3 function addevent() { gettag("input", getid("button"))[0].onclick = function() { this.value = "去除样式"; this.onclick = removeevent; radio_style(); }; } function removeevent() { var r = gettag("input"); for (var i = 0; i < r.length; i++) { if (r[i].type == "radio" || r[i].type == "checkbox") { r[i].style.opacity = 100; r[i].style.filter = "alpha(opacity=100)"; r[i].onclick = function() { } r[i].parentNode.style.background = "none"; } } gettag("input", getid("button"))[0].value = "加载样式"; gettag("input", getid("button"))[0].onclick = function() { this.value = "去除样式"; this.onclick = removeevent; radio_style(); }; } addLoadEvent(addevent); </script> <title>利用javascript自定义radio及checkbox样式</title> <h4> 单选框样式：</h4> <div class="input_style"> <span> <input type="radio" name="sex" value="boy" checked id="sex_boy"></span><label for="sex_boy">男</label> <span> <input type="radio" name="sex" value="girl" id="sex_girl"></span><label for="sex_girl">女</label> </div> <div class="input_style"> <span> <input type="radio" name="marry" value="yes" id="marry_yes"></span><label for="marry_yes">boy</label> <span> <input type="radio" name="marry" value="not" checked id="marry_not"></span><label for="marry_not">girl</label> </div> <h4> 复选框样式：</h4> <ul class="checkbox input_style"> <li> <span> <input type="checkbox" name="hobby" checked id="hobby1"></span><label for="hobby1">xhtml</label> </li> <li> <span> <input type="checkbox" name="hobby" id="hobby2"></span><label for="hobby2">CSS</label> </li> <li> <span> <input type="checkbox" name="hobby" id="hobby3"></span><label for="hobby3">Javascript</label> </li> <li> <span> <input type="checkbox" name="hobby" id="hobby4"></span><label for="hobby4">Flash</label> </li> <li> <span> <input type="checkbox" name="hobby" id="hobby5"></span><label for="hobby5">Ajax</label> </li> <li> <span> <input type="checkbox" name="hobby" id="hobby6"></span><label for="hobby6">AS</label> </li> <li> <span> <input type="checkbox" name="hobby" id="hobby7"></span><label for="hobby7">Flex</label> </li> <li> <span> <input type="checkbox" name="hobby" id="hobby8"></span><label for="hobby8">PHP/.NET/JSP</label> </li> </ul> <ul class="checkbox input_style"> <li> <span> <input type="checkbox" name="hobby" checked id="hobby9"></span><label for="hobby9">了解</label> </li> <li> <span> <input type="checkbox" name="hobby" id="hobby10"></span><label for="hobby10">一般</label> </li> <li> <span> <input type="checkbox" name="hobby" id="hobby11"></span><label for="hobby11">熟练</label> </li> <li> <span> <input type="checkbox" name="hobby" id="hobby12"></span><label for="hobby12">精通</label> </li> <li> <span> <input type="checkbox" name="hobby" id="hobby13"></span><label for="hobby13">资深专家</label> </li> </ul> <div class="button" id="button"> <input type="button" value="加载样式"> </div>
[Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]