自定义弹出框alert

function alert(txt)
{
document.write ('<table width="500px" height="170px" border="0" align="center"cellpadding="0" cellspacing="1" bgcolor="#CCCCCC">');
document.write (' <tr>');
document.write (' <td align="center" bgcolor="#F3AA33" height="25px"><span >用户信息</span></td>');
document.write (' </tr>');
document.write (' <tr>');
document.write (' <td bgcolor="#FFFFFF" height="100px" style=" font­size:13px;color:rgb(27,111,181); font­family:Verdana;">'+txt+'</td>');
document.write (' </tr>');
document.write (' <tr>');
document.write(' <td align="right" height="25px">');
document.write (' <input type="button" name="Submit2" style="width:50px;margin-right:20px;" value="确定"onclick="window.close()"/></td>');
document.write (' </tr>');
document.write ('</table>');
}

window.alert = function(str)
{
var shield = document.createElement("DIV");
shield.id = "shield";
shield.style.position = "absolute";
shield.style.left = "0px";
shield.style.top = "0px";
shield.style.width = "100%";
shield.style.height = document.body.scrollHeight+"px";
//弹出对话框时的背景颜色
shield.style.background = "#fff";
shield.style.textAlign = "center";
shield.style.zIndex = "25";
//背景透明 IE有效
//shield.style.filter = "alpha(opacity=0)";
var alertFram = document.createElement("DIV");
alertFram.id="alertFram";
alertFram.style.position = "absolute";
alertFram.style.left = "50%";
alertFram.style.top = "50%";
alertFram.style.marginLeft = "-225px";
alertFram.style.marginTop = "-75px";
alertFram.style.width = "450px";
alertFram.style.height = "150px";
alertFram.style.background = "#ff0000";
alertFram.style.textAlign = "center";
alertFram.style.lineHeight = "150px";
alertFram.style.zIndex = "300";
<pre name="code" class="html">strHtml=\"<p style=\"display:none;\">hello world!</p>\";
strHtml += "<ul style=\"list-style:none;margin:0px;padding:0px;width:100%\">\n"; strHtml += " <li style=\"background:#DD828D;text-align:left;padding-left:20px;font-size:14px;font-weight:bold;height:25px;line-height:25px;border:1px solid #F9CADE;\">[自定义提示]</li>\n"; strHtml += " <li style=\"background:#fff;text-align:center;font-size:12px;height:120px;line-height:120px;border-left:1px solid #F9CADE;border-right:1px solid #F9CADE;\">"+str+"</li>\n"; strHtml += " <li style=\"background:#FDEEF4;text-align:center;font-weight:bold;height:25px;line-height:25px; border:1px solid #F9CADE;\"><input type=\"button\" value=\"确 定\" onclick=\"doOk()\" /></li>\n"; strHtml += "</ul>\n"; alertFram.innerHTML = strHtml; document.body.appendChild(alertFram); document.body.appendChild(shield); var ad = setInterval("doAlpha()",5); this.doOk = function(){ alertFram.style.display = "none"; shield.style.display = "none"; } alertFram.focus(); document.body.onselectstart = function(){return false;}; }

window.alert = function (sid) {
// var shield = document.createElement("DIV");
//shield.id = "shield";
//shield.style.position = "absolute";
//shield.style.left = "0";
//shield.style.top = "0";
//shield.style.width = "100%";

//shield.style.height = document.body.scrollHeight + "px";
//弹出对话框时的背景颜色
// shield.style.background = "#fff";
//shield.style.textAlign = "center";
//shield.style.zIndex = "25";
//背景透明 IE有效
//shield.style.filter = "alpha(opacity=0)";
var alertFram = document.createElement("DIV");
//alertFram.className = "box-content";
alertFram.id = "alertFram";
alertFram.style.position = "absolute";
alertFram.style.width = "80%";
alertFram.style.minWidth = "970px";
alertFram.style.maxWidth = "1190pxpx";
alertFram.style.right = "1.7%";
alertFram.style.top = "22%";
alertFram.style.marginLeft = "-225px";
alertFram.style.marginLeft = "auto";
alertFram.style.marginRight = "auto";
alertFram.style.marginTop = "-75px";
//alertFram.style.width = "450px";
alertFram.style.height = "auto";
alertFram.style.background = "#ff0000";
alertFram.style.textAlign = "center";
//alertFram.style.lineHeight = "150px";
alertFram.style.zIndex = "300";
strHtml = "<ul style=\"list-style:none;margin:0px;padding:0px;width:100%;\">\n";
strHtml += " <li style=\"background:#ff8585;text-align:left;padding-left:20px;font-size:14px;font-weight:bold;height:30px;line-height:30px;text-align:center;border:1px solid #F9CADE;\">用户 " + sid + " 详细信息</li>\n";
//每个用户的信息
strHtml += " <li style=\"background:#fff;text-align:center;font-size:12px;height:auto;line-height:auto;border-left:1px solid #F9CADE;border-right:1px solid #F9CADE;\"><table class=\"alerttable table table-striped table-bordered responsive\" onload=\"getUserinfo(sid);\"><thead style=\"background-color:#e8e8e8;\"><tr><th>sid</th><th>password</th><th>phone</th><th>phone_state</th><th>fullname</th><th>nickname</th><th>citizen_id</th><th>gender</th><th>birth_year</th><th>career</th><th>company</th><th>job_title</th><th>education</th><th>school</th><th>files</th></tr></thead><tbody></tbody></table></li>\n";
strHtml += " <li style=\"background:#fff;text-align:center;font-weight:bold;border-left:1px solid #F9CADE;border-right:1px solid #F9CADE;\"><input type=\"button\" style=\"margin:10px auto;width:auto;height:30px;line-height:25px;color:white;background-color:rgb(40,160,230);\" value=\" 查看完毕 请点我返回 \" onclick=\"doOk()\" /></li>\n";
strHtml += "</ul>\n";
alertFram.innerHTML = strHtml;
document.body.appendChild(alertFram);
//document.body.appendChild(shield);
//确定关闭函数
this.doOk = function () {
alertFram.style.display = "none";
//shield.style.display = "none";
}
alertFram.focus();
document.body.onselectstart = function () { return false; };
//动态构建表格，调用后台填充数据
(function getUserinfo(sid) {
var data = 'sid=' + sid + '&func=getUserinfo';
$.ajax({
url: "ajax/func.php",
type: "POST",
dataType: 'json',
data: data,
success: function (data) {
if (data['r']) {
var $tbody = $('.alerttable tbody');
var tr = $('<tr></tr>');
if (data['r']) {
for (info in data['r'].info) {
var tds = "";
tds += $('<td>' + data['r'].info[info] + '</td>').appendTo(tr);
}
tds += $('<td><a sid="' + data['r'].info.sid + '" class = "files">' + data['r'].files.length + '</a></td>').appendTo(tr);
$tbody.html(tr);
}
} else {
alert('信息不存在！');
}
}
});
})(sid);
}
//函数：查看大图
function looking(src) {
window.open(src, "_blank", "toolbar=no,scrollbars=no,menubar=no");//打开一个新的窗口，在新的窗口显示图片的本来大小
}