Index: lams_central/web/signup/singupTab.jsp
===================================================================
diff -u -r2b88dada3266a4b0f83f4b5c4cf617553496ca59 -r4ccfff230e7e02d47842469995c6f32e8724a1db
--- lams_central/web/signup/singupTab.jsp	(.../singupTab.jsp)	(revision 2b88dada3266a4b0f83f4b5c4cf617553496ca59)
+++ lams_central/web/signup/singupTab.jsp	(.../singupTab.jsp)	(revision 4ccfff230e7e02d47842469995c6f32e8724a1db)
@@ -1,4 +1,90 @@
+	<script type='text/javascript'>//<![CDATA[        
+		$(function(){
+			
+			
+			$('form input[name="username"]').blur(function () {
+			    var username = $(this).val();
+				var re = /^[^<>^!#&()/\\|'\"?,.:{}= ~`*@%$]*$/;
+				if (re.test(username)) {
+				    $('.msg').hide();
+				} else {
+				    $('.msg').show();
+				    $(this).focus();
+				    $(this).select();
+				}
+
+			});
+
+			$('form input[name="confirmPassword"]').blur(function () {
+			    var password = $('form input[name="password"]').val();
+			    var confirmPassword = $('form input[name="confirmPassword"]').val();
+			    if (password != confirmPassword) {
+				    $('.confirmPassword').show();
+				    $('form input[name="password"]').focus();
+				    $('form input[name="password"]').select();
+				} else {
+				    $('.confirmPassword').hide();
+				}
+		
+			});	
+			
+			$('form input[name="lastName"]').blur(function () {
+			    var lastName = $(this).val();
+				var re = /^[^<>^*@%$]*$/;
+				if (re.test(lastName)) {			    
+				    $('.last').hide();
+				} else {
+				    $('.last').show();
+				    $(this).focus();
+				    $(this).select();
+				}
+		
+			});
+
+			$('form input[name="firstName"]').blur(function () {
+			    var firstName = $(this).val();
+				var re = /^[^<>^*@%$]*$/;
+				if (re.test(firstName)) {
+				    $('.first').hide();
+				} else {
+				    $('.first').show();
+				    $(this).focus();
+				    $(this).select();
+				}
+		
+			});
+
+			$('form input[name="email"]').blur(function () {
+			    var email = $(this).val();
+				var re = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
+				if (re.test(email)) {
+				    $('.email').hide();
+				} else {
+				    $('.email').show();
+				    $(this).focus();
+				    $(this).select();
+				}
+		
+			});
+			
+			$('form input[name="confirmEmail"]').blur(function () {
+			    var email = $('form input[name="email"]').val();
+			    var confirmEmail = $('form input[name="confirmEmail"]').val();
+			    if (email != confirmEmail) {
+				    $('.confirmEmail').show();
+				    $(this).focus();
+				    $(this).select();
+				} else {
+				    $('.confirmEmail').hide();
+				}
+		
+			});	
+			
+		});
+	//]]>  
+	</script>
 	<div>	
+
 		<html:form action="/signup/signup.do" method="post">
 			<html:hidden property="method" value="register" />
 			<html:hidden property="submitted" value="1" />
@@ -8,47 +94,47 @@
 			<table>
 				<tr>
 					<td class="table-row-caption"><fmt:message key="signup.username"/>:	</td>
-					<td width="30%"><html:text property="username" size="40" maxlength="255" /></td>
-					<td><html:errors property="username" /></td>
+					<td width="30%"><html:text property="username" size="40" maxlength="255"/></td>
+					<td><html:errors property="username" />  <span style="display: none;'" class="msg error"> <fmt:message key="error.username.invalid.characters"/></span></td>
 				</tr>
 				<tr>
 					<td class="table-row-caption"><fmt:message key="signup.password"/>:	</td>
-					<td><html:text property="password" size="40" maxlength="255" /></td>
+					<td><html:password property="password" size="40" maxlength="255" /></td>
 					<td><html:errors property="password" /></td>
 				</tr>
 				<tr>
 					<td class="table-row-caption"><fmt:message key="signup.confirm.password"/>:	</td>
-					<td><html:text property="confirmPassword" size="40" maxlength="255" /></td>
-					<td></td>
+					<td><html:password property="confirmPassword" size="40" maxlength="255" /></td>
+					<td><span style="display: none;'" class="confirmPassword error"><fmt:message key="error.passwords.unequal"/></span></td>
 				</tr>
 				<tr>
 					<td class="table-row-caption"><fmt:message key="signup.first.name"/>:	</td>
 					<td><html:text property="firstName" size="40" maxlength="255" /></td>
-					<td><html:errors property="firstName" /></td>
+					<td><html:errors property="firstName" /> <span style="display: none;'" class="first error"><fmt:message key="error.firstname.invalid.characters"/></span></td>
 				</tr>
 				<tr>
 					<td class="table-row-caption"><fmt:message key="signup.last.name"/>:	</td>
 					<td><html:text property="lastName" size="40" maxlength="255" /></td>
-					<td><html:errors property="lastName" /></td>
+					<td><html:errors property="lastName" /> <span style="display: none;'" class="last error"><fmt:message key="error.lastname.invalid.characters"/></span> </td>
 				</tr>
 				<tr>
 					<td class="table-row-caption"><fmt:message key="signup.email"/>:	</td>
 					<td><html:text property="email" size="40" maxlength="255" /></td>
-					<td><html:errors property="email" /></td>
+					<td><html:errors property="email" /><span style="display: none;'" class="email error"><fmt:message key="error.email.invalid.format"/></span></td>
 				</tr>
 				<tr>
 					<td class="table-row-caption"><fmt:message key="signup.confirm.email"/>:	</td>
 					<td><html:text property="confirmEmail" size="40" maxlength="255" /></td>
-					<td></td>
+					<td><span style="display: none;'" class="confirmEmail error"><fmt:message key="error.emails.unequal"/></span></td>
 				</tr>
 				<tr>
 					<td class="table-row-caption"><fmt:message key="signup.course.key"/>:	</td>
 					<td><html:password property="courseKey" size="40" maxlength="255" /></td>
-					<td><html:errors property="courseKey" /></td>
+					<td><html:errors property="courseKey"/></td>
 				</tr>
 				<tr>
 					<td></td>
-					<td class="align-right"><html:submit styleClass="button"><fmt:message key="signup.submit"/></html:submit></td>
+					<td class="align-right"><html:submit property="submit"><fmt:message key="signup.submit"/></html:submit></td>
 					<td></td>
 				</tr>
 			</table>