Ajax fundamentals

to use ajax this script is mandatory

<html>
<body>

<script type="text/javascript">

function ajaxFunction()

{

var xmlhttp;

if (window.XMLHttpRequest)

  {

  // code for IE7+, Firefox, Chrome, Opera, Safari

  xmlhttp=new XMLHttpRequest();

  }

else if (window.ActiveXObject)

  {

  // code for IE6, IE5

  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");

  }

else

  {

  alert("Your browser does not support XMLHTTP!");

  }

}

</script>


<form name="myForm">

Name: <input type="text" name="username" />

Time: <input type="text" name="time" />

</form>
</body>
</html> 

Example explained

1. Create a variable named xmlhttp to hold the XMLHttpRequest object.
2. Try to create the XMLHttpRequest object with xmlhttp=new XMLHttpRequest().
3. If that fails, try xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"). This is for IE6 and IE5.
4. If that fails too, the user has a very outdated browser, and will get an alert stating that the browser doesn't support XMLHTTP.
Note: The code above can be used every time you need to create an XMLHttpRequest object, so just copy and paste it whenever you need it.
 Source: http://www.w3schools.com/Ajax
Digg Google Bookmarks reddit Mixx StumbleUpon Technorati Yahoo! Buzz DesignFloat Delicious BlinkList Furl

0 comments: on "Ajax fundamentals"

:) ) ;) ) ;;) :D ;) :p :( ( :) :( :X =(( :-o :-/ :-* :| 8-} :) ] ~x( :-t b-( :-L x( =))
Post a Comment