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Why won't my AJAX script work?

Discussion in 'JavaScript' started by Imozeb, Feb 27, 2010.

0
  1. #1
    Why won't this AJAX script work?


    Javascript part:

    //get xmlhttp
xmlhttp = null;
if (window.XMLHttpRequest)
{
// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp = new XMLHttpRequest();
}
else
{
// code for IE6, IE5
  xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}

//print
function print()
{
	if (xmlhttp.readyState == 4)
	{
		document.getElementById('textbox').innerHTML = xmlhttp.responseText;
	}
}

//on submit
function submit()
{
	xmlhttp.open('POST','function.php',true);
	var text = document.getElementById('textbox').value;
	var param = text;
	xmlhttp.send(param);
	xmlhttp.onreadystatechange = print();
}
    Code (markup):
    PHP code:

    <?PHP
$var = $_POST['param'];
echo $var;
?>
    Code (markup):
     
    Imozeb, Feb 27, 2010 IP
  2. Logic Ali

    Logic Ali Well-Known Member

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    #2 
    [QUOTE]xmlhttp.onreadystatechange = print();[/QUOTE]
    Code (markup):
    xmlhttp.onreadystatechange = print;
    Code (markup):
    Except don't call it print because that's already a property of window.
     
    Logic Ali, Mar 2, 2010 IP