用Jquery重写windows.alert方法实现思路

$.extend({ 
includePath: '', 
include: function(file) 
{ 
var files = typeof file == "string" ? [file] : file; 
for (var i = 0; i < files.length; i++) 
{ 
var name = files[i].replace(/^\s|\s$/g, ""); 
var att = name.split('.'); 
var ext = att[att.length - 1].toLowerCase(); 
var isCSS = ext == "css"; 
var tag = isCSS ? "link" : "script"; 
var attr = isCSS ? " type='text/css' rel='stylesheet' " : " language='javascript' type='text/javascript' "; 
var link = (isCSS ? "href" : "src") + "='" + $.includePath + name + "'"; 
if ($(tag + "[" + link + "]").length == 0) document.write("<" + tag + attr + link + "></" + tag + ">"); 
} 
} 
}); 
$.include(['script/jquery.divbox.js','/css/pop_win.css']); 
$(document).ready(function() 
{ 
var IsFirstAlert = true; 
var alertQueue = []; 
window.alert = showAlert; 
var divalert = ""; 
divalert += "<div style=\"width:380px; height:180px; overflow:hidden;display:none\" id=\"divAlert\">"; 
divalert += " <div class=\"win_c\">"; 
divalert += " <div class=\"win_t\" id=\"\">"; 
divalert += " <div class=\"mail_timg\" ><h3>TITLE<\/h3><\/div>"; 
divalert += " <div class=\"clear\"><\/div>"; 
divalert += " <\/div>"; 
divalert += " <div class=\"alrt2\" style=\"text-align:center\">"; 
divalert += " <span id=\"spaAlertMessage\" class=\"f14 ifont\"><\/span><br \/>"; 
divalert += " <div class=\"clear\"><\/div>"; 
divalert += " <\/div>"; 
divalert += " <p class=\"Acenter\"><input id='alertClose' type=\"button\" value=\"确定\" class=\"btn7\" \/>    <input type=\"reset\" value=\"取消\" style=\"display:none\" class=\"btn8\" \/><br \/><br \/><\/p>"; 
divalert += " <p> <\/p>"; 
divalert += " <\/div>"; 
divalert += " "; 
divalert += "<\/div>"; 
$("body").append(divalert); 
function showAlert(info) 
{ 
alertQueue.push(info); 
if (IsFirstAlert) 
{ 
IsFirstAlert = false; 
OpenAlert(); 
} 
} 
$("#alertClose").click(function() 
{ 
$('#divAlert').CloseDiv() 
if (alertQueue.length > 0) 
{ 
setTimeout(OpenAlert, 150); 
} 
}); 
function OpenAlert() 
{ 
$("#spaAlertMessage").html(alertQueue[0]); 
alertQueue.splice(0, 1); 
$("#divAlert").OpenDiv(); 
} 
}); 
 
注：以上引用js与CSS的jquery插件