<?php// signup.php, signup.common.php, signup.server.php// demonstrate a a simple implementation of a multipage signup form// using xajax version 0.2// http://xajaxproject.orgrequire_once ("signup.common.php");function processForm($aFormValues){	if (array_key_exists("username",$aFormValues))	{		return processAccountData($aFormValues);	}	else if (array_key_exists("firstName",$aFormValues))	{		return processPersonalData($aFormValues);	}}function processAccountData($aFormValues){	$objResponse = new xajaxResponse();		$bError = false;		if (trim($aFormValues['username']) == "")	{		$objResponse->addAlert("Please enter a username.");		$bError = true;	}	if (trim($aFormValues['newPass1']) == "")	{		$objResponse->addAlert("You may not have a blank password.");		$bError = true;	}	if ($aFormValues['newPass1'] != $aFormValues['newPass2'])	{		$objResponse->addAlert("Passwords do not match.  Try again.");		$bError = true;	}	if (!$bError)	{		$_SESSION = array();		$_SESSION['newaccount']['username'] = trim($aFormValues['username']);		$_SESSION['newaccount']['password'] = trim($aFormValues['newPass1']);				$sForm = "<form id=\"signupForm\" action=\"javascript:void(null);\" onsubmit=\"submitSignup();\">";		$sForm .="<div>First Name:</div><div><input type=\"text\" name=\"firstName\" /></div>";		$sForm .="<div>Last Name:</div><div><input type=\"text\" name=\"lastName\" /></div>";		$sForm .="<div>Email:</div><div><input type=\"text\" name=\"email\" /></div>";		$sForm .="<div class=\"submitDiv\"><input id=\"submitButton\" type=\"submit\" value=\"done\"/></div>";		$sForm .="</form>";		$objResponse->addAssign("formDiv","innerHTML",$sForm);		$objResponse->addAssign("formWrapper","style.backgroundColor", "rgb(67,149,97)");		$objResponse->addAssign("outputDiv","innerHTML","\$_SESSION:<pre>".var_export($_SESSION,true)."</pre>");	}	else	{		$objResponse->addAssign("submitButton","value","continue ->");		$objResponse->addAssign("submitButton","disabled",false);	}		return $objResponse;}function processPersonalData($aFormValues){	$objResponse = new xajaxResponse();		$bError = false;	if (trim($aFormValues['firstName']) == "")	{		$objResponse->addAlert("Please enter your first name.");		$bError = true;	}	if (trim($aFormValues['lastName']) == "")	{		$objResponse->addAlert("Please enter your last name.");		$bError = true;	}	if (!eregi("^[a-zA-Z0-9]+[_a-zA-Z0-9-]*(\.[_a-z0-9-]+)*@[a-z??????0-9]+(-[a-z??????0-9]+)*(\.[a-z??????0-9-]+)*(\.[a-z]{2,4})$", $aFormValues['email']))	{		$objResponse->addAlert("Please enter a valid email address.");		$bError = true;	}	if (!$bError)	{		$_SESSION['newaccount']['firstname'] = $aFormValues['firstName'];		$_SESSION['newaccount']['lastname'] = $aFormValues['lastName'];		$_SESSION['newaccount']['email'] = $aFormValues['email'];				$objResponse->addAssign("formDiv","style.textAlign","center");		$sForm = "Account created.<br />Thank you.";		$objResponse->addAssign("formDiv","innerHTML",$sForm);		$objResponse->addAssign("formWrapper","style.backgroundColor", "rgb(67,97,149)");		$objResponse->addAssign("outputDiv","innerHTML","\$_SESSION:<pre>".var_export($_SESSION,true)."</pre>");	}	else	{		$objResponse->addAssign("submitButton","value","done");		$objResponse->addAssign("submitButton","disabled",false);	}		return $objResponse;}$xajax->processRequests();?>