让ajax中兑现提示框
日期：2014-05-16 浏览次数：20714 次
tooTip.html:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Ajax Tooltip</title>
<script type="text/javascript">
var xmlHttp;
var dataDiv;
var dataTable;
var dataTableBody;
var offsetEl;
function createXMLHttpRequest() {
if (window.ActiveXObject) {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
}
else if (window.XMLHttpRequest) {
xmlHttp = new XMLHttpRequest();
}
}
function initVars() {
dataTableBody = document.getElementById("courseDataBody");
dataTable = document.getElementById("courseData");
dataDiv = document.getElementById("popup");
}
function getCourseData(element) {
initVars();
createXMLHttpRequest();
offsetEl = element;
var url = "ToolTipServlet?key=" + escape(element.id);
xmlHttp.open("GET", url, true);
xmlHttp.onreadystatechange = callback;
xmlHttp.send(null);
}
function callback() {
if (xmlHttp.readyState == 4) {
if (xmlHttp.status == 200) {
setData(xmlHttp.responseXML);
}
}
}
function setData(courseData) {
clearData();
setOffsets();
var length = courseData.getElementsByTagName("length")[0].firstChild.data;
var par = courseData.getElementsByTagName("par")[0].firstChild.data;
var row, row2;
var parData = "Par: " + par
var lengthData = "Length: " + length;
row = createRow(parData);
row2 = createRow(lengthData);
dataTableBody.appendChild(row);
dataTableBody.appendChild(row2);
}
function createRow(data) {
var row, cell, txtNode;
row = document.createElement("tr");
cell = document.createElement("td");
cell.setAttribute("bgcolor", "#FFFAFA");
cell.setAttribute("border", "0");
txtNode = document.createTextNode(data);
cell.appendChild(txtNode);
row.appendChild(cell);
return row;
}
function setOffsets() {
var end = offsetEl.offsetWidth;
var top = calculateOffsetTop(offsetEl);
dataDiv.style.border = "black 1px solid";
dataDiv.style.left = end + 15 + "px";
dataDiv.style.top = top + "px";
}
function calculateOffsetTop(field) {
return calculateOffset(field, "offsetTop");
}
function calculateOffset(field, attr) {
var offset = 0;
while(field) {
offset += field[attr];
field = field.offsetParent;
}
return offset;
}
function clearData() {
var ind = dataTableBody.childNodes.length;
for (var i = ind - 1; i >= 0 ; i--) {
dataTableBody.removeChild(dataTableBody.childNodes[i]);
}
dataDiv.style.border = "none";
}
</script>
</head>
<body>
<h1>Ajax Tooltip Example</h1>
<h3>Golf Courses</h3>
<table id="courses" bgcolor="#FFFAFA" border="1" cellspacing="0" cellpadding="2"/>
<tbody>
<tr><td id="1" onmouseover="getCourseData(this);" onmouseout="clearData();">Augusta National</td></tr>
<tr><td id="2" onmouseover="getCourseData(this);" onmouseout="clearData();">Pinehurst No. 2</td></tr>
<tr><td id="3" onmouseover="getCourseData(this);" onmouseout="clearData();">St. Andrews Link
