勾选时我有一个主复选框，应选中所有复选框。这部分使用javascript完美运行。如果我使用另一个javascript将css类添加到复选框列表中以使这些复选框看起来很漂亮，则master复选框的主要功能将停止正常工作。
下面的是我用来设置复选框样式的脚本（checkBoxStyled.js）。
var checkboxHeight = "25";
var radioHeight = "25";
var selectWidth = "190";
document.write('<style type="text/css">input.styled { display: none; } select.styled { position: relative; width: ' + selectWidth + 'px; opacity: 0; filter: alpha(opacity=0); z-index: 5; } .disabled { opacity: 0.5; filter: alpha(opacity=50); }</style>');
var Custom = {
init: function() {
var inputs = document.getElementsByTagName("input"), span = Array(), textnode, option, active;
for(a = 0; a < inputs.length; a++) {
if((inputs[a].type == "checkbox" || inputs[a].type == "radio") && inputs[a].className == "styled") {
span[a] = document.createElement("span");
span[a].className = inputs[a].type + "Styled";
if(inputs[a].checked == true) {
if(inputs[a].type == "checkbox") {
position = "0 -" + (checkboxHeight*2) + "px";
span[a].style.backgroundPosition = position;
} else {
position = "0 -" + (radioHeight*2) + "px";
span[a].style.backgroundPosition = position;
}
}
inputs[a].parentNode.insertBefore(span[a], inputs[a]);
inputs[a].onchange = Custom.clear;
if(!inputs[a].getAttribute("disabled")) {
span[a].onmousedown = Custom.pushed;
span[a].onmouseup = Custom.check;
} else {
span[a].className = span[a].className += " disabled";
}
}
}
inputs = document.getElementsByTagName("select");
for(a = 0; a < inputs.length; a++) {
if(inputs[a].className == "styled") {
option = inputs[a].getElementsByTagName("option");
active = option[0].childNodes[0].nodeValue;
textnode = document.createTextNode(active);
for(b = 0; b < option.length; b++) {
if(option[b].selected == true) {
textnode = document.createTextNode(option[b].childNodes[0].nodeValue);
}
}
span[a] = document.createElement("span");
span[a].className = "select";
span[a].id = "select" + inputs[a].name;
span[a].appendChild(textnode);
inputs[a].parentNode.insertBefore(span[a], inputs[a]);
if(!inputs[a].getAttribute("disabled")) {
inputs[a].onchange = Custom.choose;
} else {
inputs[a].previousSibling.className = inputs[a].previousSibling.className += " disabled";
}
}
}
document.onmouseup = Custom.clear;
},
pushed: function() {
element = this.nextSibling;
if(element.checked == true && element.type == "checkbox") {
this.style.backgroundPosition = "0 -" + checkboxHeight*3 + "px";
} else if(element.checked == true && element.type == "radio") {
this.style.backgroundPosition = "0 -" + radioHeight*3 + "px";
} else if(element.checked != true && element.type == "checkbox") {
this.style.backgroundPosition = "0 -" + checkboxHeight + "px";
} else {
this.style.backgroundPosition = "0 -" + radioHeight + "px";
}
},
check: function() {
element = this.nextSibling;
if(element.checked == true && element.type == "checkbox") {
this.style.backgroundPosition = "0 0";
element.checked = false;
} else {
if(element.type == "checkbox") {
this.style.backgroundPosition = "0 -" + checkboxHeight*2 + "px";
} else {
this.style.backgroundPosition = "0 -" + radioHeight*2 + "px";
group = this.nextSibling.name;
inputs = document.getElementsByTagName("input");
for(a = 0; a < inputs.length; a++) {
if(inputs[a].name == group && inputs[a] != this.nextSibling) {
inputs[a].previousSibling.style.backgroundPosition = "0 0";
}
}
}
element.checked = true;
}
},
clear: function() {
inputs = document.getElementsByTagName("input");
for(var b = 0; b < inputs.length; b++) {
if(inputs[b].type == "checkbox" && inputs[b].checked == true && inputs[b].className == "styled") {
inputs[b].previousSibling.style.backgroundPosition = "0 -" + checkboxHeight*2 + "px";
} else if(inputs[b].type == "checkbox" && inputs[b].className == "styled") {
inputs[b].previousSibling.style.backgroundPosition = "0 0";
} else if(inputs[b].type == "radio" && inputs[b].checked == true && inputs[b].className == "styled") {
inputs[b].previousSibling.style.backgroundPosition = "0 -" + radioHeight*2 + "px";
} else if(inputs[b].type == "radio" && inputs[b].className == "styled") {
inputs[b].previousSibling.style.backgroundPosition = "0 0";
}
}
},
choose: function() {
option = this.getElementsByTagName("option");
for(d = 0; d < option.length; d++) {
if(option[d].selected == true) {
document.getElementById("select" + this.name).childNodes[0].nodeValue = option[d].childNodes[0].nodeValue;
}
}
}
}
window.onload = Custom.init;
下面是html（index.html）。请注意，如果我删除class ='styled'，一切都很完美
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-gb" lang="en-gb" dir="ltr">
<head>
<meta http-equiv="content-type" content="text/html; charset=iso-8859-1">
<meta name="language" content="en">
<script type="text/javascript" src="checkBoxStyled.js"></script>
<link rel="stylesheet" type="text/css" href="checkBoxStyled.css">
</head>
<body>
<div class="well">
<script type="text/javascript">function check_all(abox) {var table = document.getElementById('userFlashReports');var cboxes = table.getElementsByTagName('input'); var l = cboxes.length; for (var i = 0; i < l; i++) {var n = cboxes[i]; n.checked = abox.checked;}}</script>
<div>
<input name="all" id="title_1" type="checkbox" onclick="check_all(this)" class="styled">
Toggle All
</div>
<div id="userFlashReports">
<div class="checkboxSpaced">
<input class="styled" id="UserFlashReportsForm_flashReports_0" value="dmsReport" type="checkbox" name="UserFlashReportsForm[flashReports][]">
label1
</div>
<div class="checkboxSpaced">
<input class="styled" id="UserFlashReportsForm_flashReports_1" value="gobReport" type="checkbox" name="UserFlashReportsForm[flashReports][]">
label2
</div>
<div class="checkboxSpaced">
<input class="styled" id="UserFlashReportsForm_flashReports_2" value="marketSegmentReport" checked="checked" type="checkbox" name="UserFlashReportsForm[flashReports][]">
label3
</div>
</div>
</div>
</body>
</html>
CSS文件（checkBoxStyled.css）
.checkboxStyled, .radioStyled {
width: 19px;
height: 25px;
padding: 0 5px 0 0;
background: url(checkbox.png) no-repeat;
display: block;
clear: left;
float: left;
}
.selectStyled {
position: absolute;
width: 158px; /* With the padding included, the width is 190 pixels: the actual width of the image. */
height: 21px;
padding: 0 24px 0 8px;
color: #fff;
font: 12px/21px arial,sans-serif;
background: url(select.png) no-repeat;
overflow: hidden;
}
这是图片checkbox.png
答案 0 :(得分：0)
//Add following styles
.checkboxStyled:checked {
background-position: 0px -50px;
}
.radioStyled :checked {
background-position: 0px -50px;
}