<script language="JavaScript">
var HttPRequest = false;
function doCallAjax() {
HttPRequest = false;
if (window.XMLHttpRequest) { // Mozilla, Safari,...
HttPRequest = new XMLHttpRequest();
if (HttPRequest.overrideMimeType) {
HttPRequest.overrideMimeType('text/html');
}
} else if (window.ActiveXObject) { // IE
try {
HttPRequest = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
HttPRequest = new ActiveXObject("Microsoft.XMLHTTP");
} catch (e) {}
}
}
if (!HttPRequest) {
alert('Cannot create XMLHTTP instance');
return false;
}
var url = 'AjaxCheck.php';
var pmeters = "tUsername=" + encodeURI( document.getElementById("txtUsername").value);
HttPRequest.open('POST',url,true);
HttPRequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
HttPRequest.setRequestHeader("Content-length", pmeters.length);
HttPRequest.setRequestHeader("Connection", "close");
HttPRequest.send(pmeters);
HttPRequest.onreadystatechange = function()
{
if(HttPRequest.readyState == 3) // Loading Request
{
document.getElementById("mySpan").innerHTML = "..";
}
if(HttPRequest.readyState == 4) // Return Request
{
if(HttPRequest.responseText == 'Y')
{
window.location = 'login.php';
}
else
{
document.getElementById("mySpan").innerHTML = HttPRequest.responseText;
}
}
}
}
</script>
<body><form id="form1" name="form1" method="post" action="check_login">
<table width="400" border="0" cellpadding="5" cellspacing="0">
<tr>
<td colspan="2" align="center" bgcolor="#666666">Login</td>
</tr>
<tr>
<td width="100" align="right" bgcolor="#CCCCCC">Username :</td>
<td width="300" bgcolor="#CCCCCC"><label for="textfield"></label>
<input type="text" name="txtUsername" id="txtUsername" OnChange="JavaScript:doCallAjax();"> <span id="mySpan"> </td>
</tr>
<tr>
<td align="right" bgcolor="#CCCCCC">Password : </td>
<td bgcolor="#CCCCCC"><input type="password" name="txtPassword" id="txtPassword" /> <span id="mySpan2"> </td>
</tr>
<tr>
<td colspan="2" align="center" bgcolor="#CCCCCC"> </td>
</tr>
<tr>
<td colspan="2" align="center" bgcolor="#CCCCCC"><input type="reset" name="Reset" id="button" value="Clear" />
<input type="submit" name="button2" id="button2" value="Login" />
</td>
</tr>
</table>
</body> </form>
</html>
