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纯粹是为了打发时间，手写了一个JS的 alert控件。
代码如下：
<html>
<head>
<script type="text/javascript">
var alertObj = new Object();
var generalStyle = {
zIndex: 0,
width: "200px",
height: "100px",
border: "thick solid #CCCCCC",
background: "#FFFFFF",
position: "absolute",
top: "35%",
left: "40%"
}
var txtStyle = {
textAlign: "center"
}
var btnStyle = {
position: "absolute",
left: "40%",
top: "70%",
color: "#333333",
fontWeight: "bold",
outlineColor:"#3366FF",
outlineStyle:"ridge",
outlineWidth:"thin",
//outline: "thin ridge #3366FF",
innerHTML: "OK"
}
alertObj = {
generalSet: generalStyle,
txtSet: txtStyle,
btnSet: btnStyle,
isExist: false
}
alertObj.createComponent = function() {
var component = document.createElement(arguments[0]);
var styles = arguments[1];
for (var property in styles) {
if (styles[property] != null) {
try{
component.style[property] = styles[property];
}catch(err){
document.write(err.name+":"+property+"<br/>");//set property error!
}
}
}
return component;
}
alertObj.show = function() {
if(!this.isExist){
this.isExist = true;
var bodyObj = document.body;
bodyObj.style.zIndex = -1;
bodyObj.style.background = "#999999";
var divObj = this.createComponent("div", this.generalSet);
var txtObj = this.createComponent("p", this.txtSet);
txtObj.innerHTML = arguments[0];
var btnObj = this.createComponent("button", this.btnSet);
btnObj.innerHTML = this.btnSet.innerHTML;
btnObj.onclick = function() {
bodyObj.style.zIndex=0;
bodyObj.style.background="";
bodyObj.removeChild(divObj);
if(alertObj.isExist){
alertObj.isExist = false;
}
}
divObj.appendChild(txtObj);
divObj.appendChild(btnObj);
bodyObj.appendChild(divObj);
}
}
function show(s) {
alertObj.show(s);
}
</script>
</head>
<body>
<p onclick="show('inner test');">Click show alert</p>
</body>
</html>
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富贵资源网 Design By www.hznty.com
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