// zhouxue 2008-10-27
//防止在进行数据操作的时候企业再做其他操作
//
    
var bgObj=null;
var msgObj=null;
var title=null;
function sAlert(){
           
            bgObj=document.createElement("sAlertdiv");
            msgObj=document.createElement("sAlertdiv");
            title=document.createElement("sAlerth4");
			var msgw,msgh,bordercolor;
			msgw=300;//提示窗口的宽度
			msgh=70;//提示窗口的高度
			titleheight=0 //提示窗口标题高度
			bordercolor="#dcdcdc";//提示窗口的边框颜色
			titlecolor="#dcdcdc";//提示窗口的标题颜色
			
//			var sWidth,sHeight;
//			sWidth=document.body.offsetWidth;
//			sHeight=screen.height;
//			//var bgObj=document.createElement("sAlertdiv");
//			bgObj.setAttribute('id','bgDiv');
//			bgObj.style.position="absolute";
//			bgObj.style.top="0";
//			bgObj.style.background="#dcdcdc";
//			bgObj.style.filter="progid:DXImageTransform.Microsoft.Alpha(style=3,opacity=25,finishOpacity=75";
//			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);

			sAlert_Bg();
			//var msgObj=document.createElement("sAlertdiv")
			msgObj.setAttribute("id","msgDiv");
			msgObj.setAttribute("align","center");
			msgObj.style.background="#dcdcdc";
			msgObj.style.border="1px solid " + bordercolor;
	    	msgObj.style.position = "absolute";
            msgObj.style.left = "50%";
            msgObj.style.top = "50%";
            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("sAlerth4");
		   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="#dcdcdc";
		   title.style.cursor="pointer";
		   title.innerHTML="<table border=\"0\" align=\"center\"><tr><td style=\"width:20px; height: 20px;\"><img src=\"../images/loading.gif\"></td><td style=\"font-family:Verdana;font-size:12px;color:#333333; height: 20px;\" align=\"center\"><b>Loading...</b></td></tr></table>";
		   
		   document.body.appendChild(msgObj);
		   document.getElementById("msgDiv").appendChild(title);
		   var txt=document.createElement("p");
		   txt.style.margin="1em 0"
		   txt.setAttribute("id","msgTxt");
		   txt.innerHTML="";
           document.getElementById("msgDiv").appendChild(txt);
            }
            
            function sAlert_close(){
                if(bgObj){
		            document.body.removeChild(bgObj);
		            bgObj=null;
		        }
		        if(title){
                  document.getElementById("msgDiv").removeChild(title);
                  title=null;
                }
                if(msgObj){
                 document.body.removeChild(msgObj);
                 msgObj=null;
                }
                }
                
           function sAlert_Bg()
           {
           			var sWidth,sHeight;
			sWidth=document.body.offsetWidth;
			sHeight=screen.height;
			//var bgObj=document.createElement("sAlertdiv");
			bgObj.setAttribute('id','bgDiv');
			bgObj.style.position="absolute";
			bgObj.style.top="0";
			bgObj.style.background="#dcdcdc";
			bgObj.style.filter="progid:DXImageTransform.Microsoft.Alpha(style=3,opacity=25,finishOpacity=75";
			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);
           }