Hey all, I'm looking for a script (Ajax or javascript) that will help me categorize my web users. what i want to accomplish is: there will be 2 fields in the login screen, "user name" and "password", now, if the user name types a username that currently isn't in my database a third field will appear asking for a secondary password and the submitting will refer to a secondary database. (the data search will take place behind the scenes when the user will move from the username field to the password field) to start i want to create 2 fields, if the text in the first field = the string "testing" , a third field will appear. thanks
File : index.php ( or whever your form is ) <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <title>Example - Happy New Year !</title> <script language="javascript"> function processAjax( ) { xmlHttp=GetXmlHttpObject() var url="ajax.php" url=url+"?username="+ encodeURI( document.getElementById('username').value ) url=url+"&sid="+Math.random() xmlHttp.onreadystatechange=StateChanged xmlHttp.open("GET",url,true) xmlHttp.send(null) } function StateChanged() { if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") { document.getElementById('extra').innerHTML=xmlHttp.responseText } } function GetXmlHttpObject() { var objXMLHttp=null if (window.XMLHttpRequest) { objXMLHttp=new XMLHttpRequest() } else if (window.ActiveXObject) { objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP") } return objXMLHttp } </script> </head> <body> <form action="" method="post"> Enter Username : <input type="text" name="username" id="username" onblur="javascript :processAjax( );" /> <br /> Enter Password : <input type="password" name="password" /><br /> <span id="extra"></span> </form> </body> </html> PHP: The file above can be saved as html also, indeed anything that can execute js Filename : ajax.php <-- important name, leave as is ... <? if($_GET['username'] == "testing") { // Condition for if the username exists in the database echo "<input type=\"submit\" value=\"Login\"><br/>\n"; } else { // Condiion for if the username does not exist in the database echo "Enter Password Again :<input type=\"password\" name=\"password2\"><br />\n". "<input type=\"submit\" value=\"Register\">"; } ?> PHP: Obviously you'll need to add the database bits, but I do believe that's what you're looking for, happy new year