function removeAlert() {
	try {	//删除已显示的密码窗口,在密码窗口未显示的时候会出现错误
	 	var bgObj = document.getElementById('bgDiv');
	 	var title = document.getElementById('msgTitle');
	 	var msgObj = document.getElementById('msgDiv');
	 	document.body.removeChild(bgObj); 
	 	document.getElementById("msgDiv").removeChild(title); 
    document.body.removeChild(msgObj); 
	}catch(e) {}
		
	try {
		document.all("ddDateTime").style.display='none';
	}catch(e) {};
}
function sAlert(mTitle,mContent){ 
	removeAlert();
	try {
		document.all("ddDateTime").style.display='none';
	}catch(e) {};
   var msgw,msgh,bordercolor; 
   msgw=500;
   msgh=150;
   titleheight=25 
   bordercolor="#336699";
   titlecolor="#99CCFF";
   
   var sWidth,sHeight; 
   sWidth=document.body.offsetWidth; 
   sHeight=screen.height; 
   var bgObj=document.createElement("div"); 
   bgObj.setAttribute('id','bgDiv'); 
   bgObj.style.position="absolute"; 
   bgObj.style.top="0"; 
   bgObj.style.background="#777"; 
   bgObj.style.filter="progid:DXImageTransform.Microsoft.Alpha(style=3,opacity=10,finishOpacity=55"; 
   bgObj.style.opacity="0.6"; 
   bgObj.style.left="0"; 
   bgObj.style.width=sWidth + "px"; 
   bgObj.style.height=sHeight + "px"; 
   bgObj.style.zIndex = "10000"; 
   document.body.appendChild(bgObj); 
    
   var msgObj=document.createElement("div") 
   msgObj.setAttribute("id","msgDiv"); 
   msgObj.setAttribute("align","center"); 
   msgObj.style.background="white"; 
   msgObj.style.border="1px solid " + bordercolor; 
      msgObj.style.position = "absolute"; 
            msgObj.style.left = "50%"; 
            msgObj.style.top = "40%"; 
            msgObj.style.font="12px/1.6em Verdana, Geneva, Arial, Helvetica, sans-serif"; 
            msgObj.style.marginLeft = "-225px" ; 
            msgObj.style.marginTop = -75+document.documentElement.scrollTop+"px"; 
            msgObj.style.width = msgw + "px"; 
            msgObj.style.height =msgh + "px"; 
            msgObj.style.textAlign = "center"; 
            msgObj.style.lineHeight ="25px"; 
            msgObj.style.zIndex = "10001"; 
    
     var title=document.createElement("h4"); 
     title.setAttribute("id","msgTitle"); 
     title.setAttribute("align","right"); 
     title.style.margin="0"; 
     title.style.padding="3px"; 
     title.style.background=bordercolor; 
     title.style.filter="progid:DXImageTransform.Microsoft.Alpha(startX=20, startY=20, finishX=100, finishY=100,style=1,opacity=75,finishOpacity=100);"; 
     title.style.opacity="0.75"; 
     title.style.border="1px solid " + bordercolor; 
     title.style.height="18px"; 
     title.style.font="12px Verdana, Geneva, Arial, Helvetica, sans-serif"; 
     title.style.color="white"; 
     title.style.cursor="pointer"; 
     title.innerHTML="<table width=100% cellpadding=0 cellspacing=0><tr><td style='text-align:left;'><b>"+mTitle+"</b></td><td style='text-align:right;'>关闭</td></tr></table>"; 
     title.onclick=function(){ 
          document.body.removeChild(bgObj); 
                document.getElementById("msgDiv").removeChild(title); 
                document.body.removeChild(msgObj); 
                try {
									document.all("ddDateTime").style.display='';
								}catch(e) {};
                } 
     document.body.appendChild(msgObj); 
     document.getElementById("msgDiv").appendChild(title); 
     var txt=document.createElement("div"); 
     txt.style.margin="1em 0" 
     txt.setAttribute("id","msgTxt"); 
     var str = mContent;
     txt.innerHTML=str; 
     txt.style.textAlign="left";
     document.getElementById("msgDiv").appendChild(txt);
     document.getElementById("psw").focus();
}