| Ajax Examples |
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9. Show Time using Ajax and php
The objective of this example is to show current server time when the button on the page is clicked.
Clicking the button doesn't refresh the page. The above page contains button component containing "onclick" attribute which is set to JavaScript function "showCurrentTime()". This function is called
each time this button is clicked. The “div” component of “date” id is used to display the time when
Ajax response is completed.showtime.html
<html>
<head>
<title>Ajax Example</title>
<script language="Javascript">
function postRequest(strURL) {
var xmlHttp;
if (window.XMLHttpRequest) { // Mozilla, Safari, ...
var xmlHttp = new XMLHttpRequest();
} else if (window.ActiveXObject) { // IE
var xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlHttp.open('POST', strURL, true);
xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
xmlHttp.onreadystatechange = function() {
if (xmlHttp.readyState == 4) {
updatepage(xmlHttp.responseText);
}
}
xmlHttp.send(strURL);
}
function updatepage(responsetext){
document.getElementById("date").innerHTML =
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Apr 2008 | Java Jazz Up | 42 |
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