<html>
<head>
<title></title>
<script type="text/javascript">
function sAlert(str) {
var msgw, msgh, bordercolor;
msgw = 300;//提示窗口的宽度
msgh = 200; //提示窗口的高度
titleheight = 25; //提示窗口标题宽度
bordercolor = "#FF3C00"; //提示窗口的边框颜色
titlecolor = "#D2CECE";//提示窗口的标题颜色
var sWidth, sHeight;
sWidth = document.body.clientWidth; //bod对象宽度
if (window.innerHeight && window.scrollMaxY) {
sHeight = window.innerHeight + window.scrollMaxY;
}
else if (document.body.scrollHeight > document.body.offsetHeight) {
sHeight = document.body.scrollHeight;
}
else {
sHeight = document.body.offsetHeight;
} //以上得到整个屏幕的高
var bgObj = document.createElement("div"); //创建一个div对象
bgObj.setAttribute("id", "bgDiv");
bgObj.style.position = "absolute"; //绝对定位
bgObj.style.top = "0"; //顶部为0
bgObj.style.backgroud = "#777"; //背景颜色
bgObj.style.filter = "progid:DXImageTransform.Microsoft.Alpha(style=3,opacity=25,finishiOpacity=75)"; //ie浏览器透明度设置
bgObj.style.opacity = "0.6"; //透明度（火狐中）
bgObj.style.left = "0"; //左边为0
bgObj.style.width = sWidth + "px";
bgObj.style.height = sHeight + "px";
bgObj.style.zIndex = "100"; //层的z轴位置
document.body.appendChild(bgObj);
var msgObj = document.createElement("div");
msgObj.setAttribute("id", "msgDiv");
msgObj.setAttribute("align","center");
msgObj.style.position = "absolute";
msgObj.style.top = "30%";
msgObj.style.backgroud = "white";
msgObj.style.border = "1px solid "+bordercolor;
msgObj.style.left = "35%";
msgObj.style.font = "12px/1.6en Verdana,Geneva,Arial,Helvetica,sans-serif";
msgObj.style.width = msgw + "px";
msgObj.style.height = msgh + "px";
msgObj.style.textAlign = "center";//文本位置属性，居中
msgObj.style.lineHeight = "25px"; //行间距
msgObj.style.zIndex = "101"; //层的z轴位置
var title = document.createElement("h4"); //创建一个h4对象
title.setAttribute("id", "msgTitle"); //为h4对象添加标题
title.setAttribute("align", "right"); //文字的对齐方式
title.style.margin = "0"; //浮动
title.style.padding = "3px"; //浮动
title.style.backgroud = titlecolor; //背景颜色
title.style.filter = "progid:DXImageTransform.Microsoft.Alpha(startX=20,startY=20,finishX=100,finishY=100,style=1,opacity=75,finishiOpacity=100);";
title.style.opacity = "0.75"; //透明
//title.style.border = "1px solid" + bordercolor;
title.style.height = "25px"; //高度
title.style.font = "12px Verdana,Geneva,Arial,Helvetica,sans-serif"; //字体属性
title.style.color = "white"; //文字颜色
title.style.cursor = "pointer";//鼠标样式
title.innerHTML = "<a href=\"#\">关闭</a>";//显示的文字
title.onclick = function () {
document.body.removeChild(bgObj);//移除遮罩层
document.getElementById("msgDiv").removeChild(title); //在提示框中移除标题
document.body.removeChild(msgObj);//移除提示框
}
document.body.appendChild(msgObj); //在body中画出提示框层
document.getElementById("msgDiv").appendChild(title); //在提示框中增加标题
var txt = document.createElement("p");
txt.style.margin = "0";//文本浮动
txt.setAttribute("id", "msgTxt");//为p属性增加id属性
txt.innerHTML = str;//把传进来的值赋给p属性
document.getElementById("msgDiv").appendChild(txt); //把p属性增加到提示框中
}
</script>
</head>
<body>
<a href="#" onclick="sAlert('<a href=http://www.it300.net>测试效果</a>');">点击测试</a>
</body>
</html>