Posted on 2008-09-24 16:04
魚躍于淵 閱讀(343)
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平時小練習
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<style type="text/css">
#preWin {
background-color: #ff9 ;
width : 400px ;
height : 400px ;
font-size: 9pt ;
padding: 5px ;
position : absolute ;
visibility : hidden ;
top : 10px ;
left : 10px ;
border : 1px #cc0 solid ;
clip : auto ;
overflow : hidden ;
}
#preWin h1, #preWin h2{
font-size : 1.0em ;
}
</style>
<script type="text/javascript">
window.onload = initAll ;
var xhr = false ;
var xPos ;
var yPos ;
function initAll(){
document.getElementById("test01").onmouseover = test ;
}
function test(evt){
makePrev(evt) ;
return false ;
}
function makePrev(evt){
var url = evt ? evt.target : window.event.srcElement ;
var evt = evt ? evt : window.event ;
xPos = evt.clientX ;
yPos = evt.clientY ;
if(window.XMLHttpRequest){
xhr = new XMLHttpRequest() ;
}else{
if(window.ActiveXObject){
try{
xhr = new ActiveXObject("Microsoft.XMLHttpRequest") ;
}catch(e){}
}
}
if(xhr){
xhr.onreadystatechange = showContents ;
xhr.open("GET", url, true) ;
xhr.send(null) ;
}else{
document.getElementById("preWin").innerHTML = "sorry ! but your pc coundn't create a xhr object !" ;
}
}
function showContents(){
if(xhr.readyState == 4){
if(xhr.status == 200){
var msg = xhr.responseText ;
}else{
var msg = "error status = " + xhr.status ;
}
var preWin = document.getElementById("preWin") ;
preWin.style.top=parseInt(yPos) + 2 + "px" ;
preWin.style.left=parseInt(xPos) + 2 + "px" ;
preWin.style.visibility = "visible" ;
preWin.innerHTML = msg ;
preWin.onmouseout = hidePreview ;
}
}
function hidePreview(){
document.getElementById("preWin").style.visibility = "hidden" ;
}
</script>
</head>
<body>
<center>
<a id="test01" href="xxx.html">ajax preWin</a>
<div id="preWin"></div>
</center>
</body>
</html>
xxx.html 文件為 :
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1>preview</h1><h2>A Gentle Introduction to JavaScript</h2>
fjdsla jdfljsldfjlas djflsajd fljsdlf jlsdjf lsajdlfj sladjf asdf<br>
fdlsajfl jasldfjlasjdflasjdlfjasldjflas jldlsa jlsdjflsdfkl<br>
asdjf lksjdlfjasodfuwjeugsj;gjslfdgjsfjdgoufgjs;ldsf<br>
sjdlfugfgsaodjfoasdjfoasjdofjasidf<p>
sadlrefjldasdjflasjdlfjasdf
asdggfdfgdfgfdgdfgdfgdfg
ferfgfg
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ferdfgfg gfedgdfgdfgfdg
sfdgfggeregrerg</p>
</body>
</html>