Ajax xml login help

reader · 03-19-2011, 06:46 PM

I wrote the following code that is a login form for user accounts stored in xml files but when i try to login no popup box shows up could someone please tell me what I did wrong

Code:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html>
<head>
<style type=text/css>
</style>

<script type=text/javascript>
	function login(){
	var xmlhttp;
	var login=document.getElementById("login");
	var xmlDoc=xmlhttp.responseXML;
	if (window.XMLHttpRequest)
    {// code for IE7+, Firefox, Chrome, Opera, Safari
    xmlhttp=new XMLHttpRequest();
    }
    else
	{
    xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
	xmlhttp.open("GET","/users/" + login.elements[0].value + ".xml", true);
	xml.send();
	if (xmlDoc.getElementByTagName("username")==login.elements[0].value)
	{
		if (xmlDoc.getElementByTagName("password")==login.elements[1].value)
		{
			alert ("You have entered the correct username and password");
		}
		else
		{
			alert ("Incorrect username or password");
		}
	}
	else
	{
		alert("Incorrect username or password");
	}
</script>



</head>
<body>
<div id=login>
    <form name=login id=login>
	    Username: <input type=text name=login_username id=username />
	    <br />
	    Password: <input type=password name=login_pass id=password />
	    <br />
	    <input type=submit class=button value=Submit onClick=javascript.login() />
	</form>
</div>

<style language=javascript>
</style>

</body>
</html>

MarPlo · 03-20-2011, 04:18 PM

Hy,
getElementByTagName("password") contains an array of all tags "password"
Try getElementByTagName("password")[0]
Also, the values of attributes in the html form should be within quote id="password" and the others.
If still don't works, see the examples from Ajax and XML tutorial.