var MB_OK=0;
var MB_CANCEL=1;
var MB_OKCANCEL=2;
var MB_YES=3;
var MB_NO=4;
var MB_YESNO=5;
var MB_YESNOCANCEL=6;

var MB_OK_TEXT="确定";
var MB_CANCEL_TEXT="取消";
var MB_YES_TEXT=" 是 ";
var MB_NO_TEXT=" 否 ";

var MB_ICON="/images/msgBox.gif";

var MB_OK_METHOD=null;
var MB_CANCEL_METHOD=null;
var MB_YES_METHOD=null;
var MB_NO_METHOD=null;
var MB_BACKCALL=null;
var MB_STR='<style type="text/css">'+
'.msgbox_title{background-color:#B1CDF3;text-align:left;height:18px;position:relative;line-height:18px;padding-left:10px;padding-top:3px;border-bottom:1px solid #000;}'+
'.msgbox_control{text-align:center;clear:both;height:28px;}'+
'.msgbox_button{background-color:#B1CDF3;border:1px solid #003366;line-height:17px;height:20px;padding-bottom:5px;}'+
'.msgbox_content{padding:10px;float:left;line-height:20px;}.msgbox_content em{color:#ff7611;}'+
'.msgbox_icon{float:left;line-height:50px;padding-left:6px;padding-top:10px;}'+
'.msgbox_mask{position:absolute;left:0px;top:0px;z-index:99999;background-color:#333333;width:100%;height:100%;}'+
'.msgbox{background-color:#EFFAFE;position:absolute;height:auto;top:45%;left:50%;border:1px solid #999999;}'+
'</style>'+
'<div id="msgBoxMask" class="msgbox_mask" style="filter:alpha(opacity=0);display:none;"></div>'+
'<div class="msgbox" style="display:none;z-index:100000;" id="msgBox">'+
'<div class="msgbox_title" id="msgBoxTitle"></div>'+
'<div class="msgbox_icon" id="msgBoxIcon"></div>'+
'<div class="msgbox_content" id="msgBoxContent"></div>'+
'<div class="msgbox_control" id="msgBoxControl"></div></div>';
var Timer=null;
document.write(MB_STR);
var icon=new Image();
icon.src=MB_ICON;

function msgBox()
{
	if(arguments[5]!=null)
	{
		document.getElementById("msgBoxContent").style.width=arguments[5]+"px";
	}
	var _content=arguments[0]||"这是一个对话框！";
	var _title=arguments[1]||"提示";
	var _icon=arguments[2]||MB_ICON;
	var _button=arguments[3]||MB_OK;
	MB_BACKCALL=arguments[4];
	var _iconStr='<img src="{0}">';
	var _btnStr='<input name="{0}" id="{0}" type="button" class="msgbox_button" value="{1}" onclick="MBMethod(this)"/>';
	switch(_button)
	{
		case MB_CANCEL:_btnStr=_btnStr.toFormatString("msgBoxBtnCancel",MB_CANCEL_TEXT);break;
		case MB_YES:_btnStr=_btnStr.toFormatString("msgBoxBtnYes",MB_YES_TEXT);break;
		case MB_NO:_btnStr=_btnStr.toFormatString("msgBoxBtnNo",MB_NO_TEXT);break;
		case MB_OKCANCEL:
		_btnStr=_btnStr.toFormatString("msgBoxBtnOk",MB_OK_TEXT)+"  "+
		_btnStr.toFormatString("msgBoxBtnCancel",MB_CANCEL_TEXT);
		break;
		case MB_YESNO:
		_btnStr=_btnStr.toFormatString("msgBoxBtnYes",MB_YES_TEXT)+"  "+
		_btnStr.toFormatString("msgBoxBtnNo",MB_NO_TEXT);
		break;
		case MB_YESNOCANCEL:
		_btnStr=_btnStr.toFormatString("msgBoxBtnYes",MB_YES_TEXT)+"  "+
		_btnStr.toFormatString("msgBoxBtnNo",MB_NO_TEXT)+"  "+
		_btnStr.toFormatString("msgBoxBtnCancel",MB_CANCEL_TEXT);
		break;
		default:_btnStr=_btnStr.toFormatString("msgBoxBtnOk",MB_OK_TEXT);break;
	}
	//fix reset problem in firefox
	ScrollTop=GetBrowserDocument().scrollTop;
	ScrollLeft=GetBrowserDocument().scrollLeft;
	if(navigator.userAgent.toLowerCase().indexOf("msie")==-1)
	{
		GetBrowserDocument().style.overflow="hidden";	
	}
	GetBrowserDocument().scrollTop=ScrollTop;
	GetBrowserDocument().scrollLeft=ScrollLeft;
	$("msgBoxTitle").innerHTML=_title;
	$("msgBoxIcon").innerHTML=_iconStr.toFormatString(_icon);
	$("msgBoxContent").innerHTML=_content;
	$("msgBoxControl").innerHTML=_btnStr;
	OpacityValue=0;
	$("msgBox").style.display="";
	try{$("msgBoxMask").filters("alpha").opacity=0;}catch(e){};
	$("msgBoxMask").style.opacity=0;
	$("msgBoxMask").style.display="";
	$("msgBoxMask").style.height=GetBrowserDocument().scrollHeight+"px";
	$("msgBoxMask").style.width = GetBrowserDocument().scrollWidth+"px";
	Timer=setInterval("DoAlpha()",1);
	//set location
	$("msgBox").style.width="100%";
	$("msgBox").style.width=($("msgBoxIcon").offsetWidth+$("msgBoxContent").offsetWidth+2)+"px";
	$("msgBox").style.marginTop=(-$("msgBox").offsetHeight/2+GetBrowserDocument().scrollTop)+"px";
	$("msgBox").style.marginLeft=(-$("msgBox").offsetWidth/2+GetBrowserDocument().scrollLeft)+"px";
	if(_button==MB_OK||_button==MB_OKCANCEL)
	{
		$("msgBoxBtnOk").focus();
	}
	else if(_button==MB_YES||_button==MB_YESNO||_button==MB_YESNOCANCEL)
	{
		$("msgBoxBtnYes").focus();
	}
	if(document.getElementById("input")!=null)
	{
		document.getElementById("input").focus();
	}
}
var OpacityValue=0;
var ScrollTop=0;
var ScrollLeft=0;
function GetBrowserDocument()
{
	var _dcw=document.documentElement.clientHeight;
	var _dow=document.documentElement.offsetHeight;
	var _bcw=document.body.clientHeight;
	var _bow=document.body.offsetHeight;
	if(_dcw==0)return document.body;
	if(_dcw==_dow)return document.documentElement;
	if(_bcw==_bow&&_dcw!=0)
	return document.documentElement;
	else
	return document.body;
}
function SetOpacity(obj,opacity)
{
	if(opacity>=1)opacity=opacity/100;
	try{obj.style.opacity=opacity;}catch(e){}
	try{
	if(obj.filters)
	{
		obj.filters("alpha").opacity=opacity*100;
	}
	}catch(e){}
}
function DoAlpha()
{
	if(OpacityValue>20){clearInterval(Timer);return 0;}
	OpacityValue+=5;
	SetOpacity($("msgBoxMask"),OpacityValue);
}
function MBMethod(obj)
{
	switch(obj.id)
	{
	case "msgBoxBtnOk":if(MB_BACKCALL){MB_BACKCALL(MB_OK);}else{if(MB_OK_METHOD)MB_OK_METHOD();}break;
	case "msgBoxBtnCancel":if(MB_BACKCALL){MB_BACKCALL(MB_CANCEL);}else{if(MB_CANCEL_METHOD) MB_CANCEL_METHOD();}break;
	case "msgBoxBtnYes":if(MB_BACKCALL){MB_BACKCALL(MB_YES);}else{if(MB_YES_METHOD)MB_YES_METHOD();}break;
	case "msgBoxBtnNo":if(MB_BACKCALL){MB_BACKCALL(MB_NO);}else{if(MB_NO_METHOD)MB_NO_METHOD();}break;
	}
	MB_OK_METHOD=null;
	MB_CANCEL_METHOD=null;
	MB_YES_METHOD=null;
	MB_NO_METHOD=null;
	MB_BACKCALL=null;
	MB_OK_TEXT="确定";
	MB_CANCEL_TEXT="取消";
	MB_YES_TEXT=" 是 ";
	MB_NO_TEXT=" 否 ";
	$("msgBox").style.display="none";
	$("msgBoxMask").style.display="none";
	GetBrowserDocument().style.overflow="";
	GetBrowserDocument().scrollTop=ScrollTop;
	GetBrowserDocument().scrollLeft=ScrollLeft;
}
String.prototype.toFormatString=function()
{
	var _str=this;
	for(var i=0;i<arguments.length;i++)
	{
		_str=eval("_str.replace(/\\{"+i+"\\}/ig,'"+arguments[i]+"')");
	}
	return _str;
}
function $(obj)
{
	return document.getElementById(obj);
}