// expersystem.js
  var xmlHttp;
    function createXMLHttpRequest() {
    	if(!xmlHttp){
      if(typeof XMLHttpRequest != "undefined") {
      		xmlHttp = new XMLHttpRequest();
		return xmlHttp;
	}
	var aVersion=['MSXML2.XMLHttp.5.0','MSXML2.XMLHttp.4.0','MSXML2.XMLHttp.3.0','MSXML2.XMLHttp','Microsoft.XMLHTTP'];
	for(var i = 0; i < aVersion.length; i++) {
		try {
			xmlHttp = new ActiveXObject(aVersion[i]);
			return xmlHttp;
		} catch(oError){
		}
	}
    	}
	else if(xmlHttp.readyState != 0) {
		xmlHttp.abort();
		return xmlHttp;
	}
  }
  
  function getexpersystemdata(){
	var index;
	this.handleStateChange = function() {
         if(xmlHttp.readyState == 4) {
            if(xmlHttp.status == 200) {
              document.getElementById('expertsystemDiv').innerHTML = xmlHttp.responseText;
        }
      }
}
        createXMLHttpRequest();
        xmlHttp.onreadystatechange = this.handleStateChange;
        xmlHttp.open("GET", '/expersystem.jsp', true);
        xmlHttp.send(null);
}

var show = function(id) {
	document.getElementById(id).style.display = 'block';
};
var hide = function(id) {
	document.getElementById(id).style.display = 'none';
};
function  expertsystem(l,t) {
	var left = 0;
	createExpertsystemDiv();
	var expertTD;
	var headermenu = document.getElementById('headermenu1');
	var expertsystemDiv = document.getElementById('expertsystemDiv');
	var childs = headermenu.getElementsByTagName('td');
	for(var i = 0; i < childs.length; i++){
		if(childs[i].innerHTML.indexOf('\u4e13\u5bb6\u7cfb\u7edf') != -1) {
			expertTD = childs[i];
			expertsystemDiv.style.top = childs[i].offsetHeight + t;
			break;
		}
		else {
			left = left + childs[i].offsetWidth;
		}
	}
	expertsystemDiv.style.left = left + l;
	headermenu.style.position='relative';
	expertTD.onmouseover = function(){show('expertsystemDiv');};
	expertTD.onmouseout = function(){hide('expertsystemDiv');};
	expertsystemDiv.onmouseover = function(){show('expertsystemDiv');};
	expertsystemDiv.onmouseout = function(){hide('expertsystemDiv');};
	
}
function createExpertsystemDiv() {
	var expertsystemDiv = document.createElement("div");
	expertsystemDiv.id = 'expertsystemDiv';
	expertsystemDiv.style.display = 'none';
	document.getElementById('headermenu1').appendChild(expertsystemDiv);
	getexpersystemdata();
}
document.write('<style>#expertsystemDiv{z-index:2;POSITION:absolute;background-color: #f7f7f7;line-height:21px;padding:5px;border:1px solid #000}'
 + '#expertsystemDiv a{color:#000}</style>');