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Linux_User BLOG
Wednesday, May 16, 2007
Script Real Time Menggunakan Ajax
Ini adalah contoh script untuk mendapatkan real time data. Pada contoh ini data diambil setiap 2 detik.
<br /><html><br /><head><br /><title>messages</title><br /><meta equiv="Content-Type" content="text/html; charset=iso-8859-1"><br /><script><br />function createRequestObject() {<br />var ro;<br />var browser = navigator.appName;<br />if(browser == "Microsoft Internet Explorer"){<br />ro = new ActiveXObject("Microsoft.XMLHTTP");<br />}else{<br />ro = new XMLHttpRequest();<br />}<br />return ro;<br />}<br /><br />var http = createRequestObject();<br /><br />function sndReq() {<br />http.open('get', 'messages.php');<br />http.onreadystatechange = handleResponse;<br />http.send(null);<br />setTimeout("sndReq()", 2000); // Recursive JavaScript function calls sndReq() every 2 seconds<br />}<br /><br />function handleResponse() {<br />if(http.readyState == 4){<br />var response = http.responseText;<br />if (response != responseold || responsecheck != 1) {<br />var responsecheck = 1;<br />document.getElementById("messages").innerHTML = http.responseText;<br />var responseold = response;<br />}<br />}<br />}<br /><br /><br /></script><br /></head><br /><body onload="javascript:sndReq();"><br /><div id="messages"></div><br /></body><br /></html><br /><textarea><br /><br /><br /><br /><br />Silahkan dicoba sendiri.<br /><br />Email: linux.net.analyst@gmail.com<br />
Silahkan dicoba sendiri
email: linux.net.analyst@gmail.com
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