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POHow to display error messages in red font color on form using jQuery?
 

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  1. POHow to display error messages in red font color on form using jQuery?
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    <p>I'm using PHP and smarty. I'm bit new to jQuery. I've written a function in jQuery and calling this function on form submit. Currently I'm showing the error message in alert. But the requirement is it should be displayed above the form and the field having error should get highlighted. The font colour should be red in both cases. For your reference I'm pasting my smarty template code(i.e form code).</p> <pre><code>&lt;table width="100%" border="0" align="center" cellpadding="0" cellspacing="0" &gt; &lt;tr&gt; &lt;td align="left" valign="top"&gt;&lt;h3&gt;Contact Lists &gt;&gt; {$bread_crumbs_text}&lt;/h3&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td valign="top"&gt; &lt;table width="99%" border="0" cellpadding="0" cellspacing="0" class="manage_box" &gt; &lt;tr&gt; &lt;td&gt; &lt;div id="contact_list_import"&gt; &lt;form name="manage_contact_list_import" id="manage_contact_list_import" action="contact_list_import.php" method="post"&gt; &lt;input type="hidden" name="op" id="op" value="{$op}"&gt; &lt;input type="hidden" name="contact_list_id" id="contact_list_id" value="{$contact_list_id}"&gt; &lt;input type="hidden" name="form_submitted" id="form_submitted" value="yes"&gt; &lt;table width="99%" border="0" cellpadding="5" cellspacing="5"&gt; &lt;tr&gt; &lt;td colspan="3" class="errorMsg"&gt;{$error_msg.error_msgs}&lt;/td&gt; &lt;/tr&gt; &lt;tr height="30" id="user_option"&gt; &lt;td width="300"&gt; &lt;input type="checkbox" id="users" name="users_choice" value="users"/&gt;Users &lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;input type="checkbox" id="upload_from_file" name="users_choice" value="upload_from_file"/&gt;Upload From File &lt;/td&gt; &lt;td&gt; &lt;input type="checkbox" id="copy_paste_from_excel" name="users_choice" value="copy_paste_from_excel"/&gt;Copy paste from excel &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt;&lt;td colspan="5"&gt;&amp;nbsp;&lt;/td&gt;&lt;/tr&gt; &lt;table border="0" width="80%" class="option_users"&gt; &lt;tr height="30"&gt; &lt;td align="left" width="80%" colspan="5"&gt; &lt;h4&gt;Users&lt;/h4&gt; &lt;input type="checkbox" class="user_checkbox" name="user_checkbox" id="all_users" value="all_users"/&gt;all users &amp;nbsp;&amp;nbsp; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt;&lt;td colspan="5"&gt;&amp;nbsp;&lt;/td&gt;&lt;/tr&gt; &lt;tr height="30"&gt; &lt;td align="left" width="20%"&gt; &lt;input type="checkbox" class="user_checkbox" name="user_checkbox" id="registered_users" value="registered_users"/&gt;Registered users &amp;nbsp;&amp;nbsp; &lt;/td&gt; &lt;td valign="middle" align="left" width="10%"&gt;&lt;b&gt;From Date &lt;/b&gt; : &lt;/td&gt; &lt;td align="left" &gt;&amp;nbsp;&lt;input type="text" style="width:100px;" class="inputfield" name="registered_users_from_date" id="registered_users_from_date" maxlength="10" width="20%"&gt;&lt;/td&gt; &lt;td valign="middle" align="left" width="10%"&gt;&lt;b&gt;To Date &lt;/b&gt; : &lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;input type="text" style="width:100px;" class="inputfield" name="registered_users_to_date" id="registered_users_to_date" maxlength="10" width="20%"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt;&lt;td colspan="5"&gt;&amp;nbsp;&lt;/td&gt;&lt;/tr&gt; &lt;tr height="30"&gt; &lt;td align="left" width="20%"&gt; &lt;input type="checkbox" class="user_checkbox" name="user_checkbox" id="logged_in_users" value="logged_in_users"/&gt;Logged-in users &amp;nbsp;&amp;nbsp; &lt;/td&gt; &lt;td valign="middle" align="left" width="10%"&gt;&lt;b&gt;From Date &lt;/b&gt; : &lt;/td&gt; &lt;td align="left" &gt;&amp;nbsp;&lt;input type="text" style="width:100px;" class="inputfield" name="registered_users_from_date" id="logged_in_users_from_date" maxlength="10"&gt;&lt;/td&gt; &lt;td valign="middle" align="left" width="10%"&gt;&lt;b&gt;To Date &lt;/b&gt; : &lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;input type="text" style="width:100px;" class="inputfield" name="registered_users_to_date" id="logged_in_users_to_date" maxlength="10"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt;&lt;td colspan="5"&gt;&amp;nbsp;&lt;/td&gt;&lt;/tr&gt; &lt;tr height="30"&gt; &lt;td align="left" width="20%"&gt; &lt;input type="checkbox" class="user_checkbox" name="user_checkbox" id="not_logged_in_users" value="not_logged_in_users"/&gt;Not logged-in Users &amp;nbsp;&amp;nbsp; &lt;/td&gt; &lt;td valign="middle" align="left" width="10%"&gt;&lt;b&gt;From Date &lt;/b&gt; : &lt;/td&gt; &lt;td align="left" &gt;&amp;nbsp;&lt;input type="text" style="width:100px;" class="inputfield" name="not_logged_in_users_from_date" id="not_logged_in_users_from_date" maxlength="10"&gt;&lt;/td&gt; &lt;td valign="middle" align="left" width="10%"&gt;&lt;b&gt;To Date &lt;/b&gt; : &lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;input type="text" style="width:100px;" class="inputfield" name="not_logged_in_users_to_date" id="not_logged_in_users_to_date" maxlength="10"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt;&lt;td colspan="5"&gt;&amp;nbsp;&lt;/td&gt;&lt;/tr&gt; &lt;tr height="30"&gt; &lt;td width="300" colspan="5"&gt; &lt;input type="checkbox" class="user_checkbox" name="user_checkbox" id="never_logged_in_users" value="never_logged_in_users"/&gt;Never logged-in Users &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt;&lt;td colspan="5"&gt;&amp;nbsp;&lt;/td&gt;&lt;/tr&gt; &lt;tr height="30"&gt; &lt;td width="300" colspan="1"&gt; &lt;input type="checkbox" class="user_checkbox" name="user_checkbox" id="package_purchase" value="package_purchase"/&gt;Package purchase &lt;/td&gt; &lt;td align="left" colspan="4"&gt; &lt;select name="test_pack_type_id" id="test_pack_type_id"&gt; &lt;option value=""&gt;All&lt;/option&gt; {if $all_type} {foreach from=$all_type item="type"} &lt;option value="{$type.package_type_id}"&gt;{$type.package_type_name}&lt;/option&gt; {/foreach} {/if} &lt;/select&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt;&lt;td colspan="5"&gt;&amp;nbsp;&lt;/td&gt;&lt;/tr&gt; &lt;tr height="30"&gt; &lt;td width="300" colspan="5"&gt; &lt;input type="checkbox" class="user_checkbox" name="user_checkbox" id="try_demo_packages" value="try_demo_packages"/&gt;Try demo packages &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt;&lt;td colspan="5"&gt;&amp;nbsp;&lt;/td&gt;&lt;/tr&gt; &lt;/table&gt; &lt;tr&gt; &lt;td colspan="5" valign="top" align="center"&gt; &lt;input type="submit" name="submit_value" id="submit_value" value="{$submit_value}" class="submit"&gt;&amp;nbsp;&amp;nbsp; &lt;input type="button" name="back" id="back" value="{$cancel_value}" class="submit" onclick="javascript:window.location.href='{$control_url}modules/contact_list/contact_list.php'"/&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/form&gt; &lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; {literal} &lt;script language="javascript" type="text/javascript"&gt; $(function() { $( "#registered_users_from_date" ).datepicker({ changeMonth: true, changeYear: true, dateFormat: 'dd/mm/yy' }); }); $(function() { $( "#registered_users_to_date" ).datepicker({ changeMonth: true, changeYear: true, dateFormat: 'dd/mm/yy' }); }); $(function() { $( "#logged_in_users_from_date" ).datepicker({ changeMonth: true, changeYear: true, dateFormat: 'dd/mm/yy' }); }); $(function() { $( "#logged_in_users_to_date" ).datepicker({ changeMonth: true, changeYear: true, dateFormat: 'dd/mm/yy' }); }); $(function() { $( "#not_logged_in_users_from_date" ).datepicker({ changeMonth: true, changeYear: true, dateFormat: 'dd/mm/yy' }); }); $(function() { $( "#not_logged_in_users_to_date" ).datepicker({ changeMonth: true, changeYear: true, dateFormat: 'dd/mm/yy' }); }); $(function(){ $(".user_checkbox").click(function(){ if($("#all_users" ).is(":checked")) { $("#registered_users").removeAttr("checked"); $("#logged_in_users").removeAttr("checked"); $("#not_logged_in_users").removeAttr("checked"); $("#never_logged_in_users").removeAttr("checked"); $("#package_purchase").removeAttr("checked"); $("#try_demo_packages").removeAttr("checked"); } else if ($("#registered_users" ).is(":checked") || $("#logged_in_users" ).is(":checked") || $("#not_logged_in_users" ).is(":checked") || $("#never_logged_in_users" ).is(":checked") || $("#package_purchase" ).is(":checked") || $("#try_demo_packages" ).is(":checked") ) { $("#all_users").removeAttr("checked"); } }); }); $(function(){ $('.option_users').hide(); $("#users").click(function() { if($("#users").is(":checked")) $('.option_users').show(); else $('.option_users').hide(); }); }); $("#submit_value").click(function(){ if($('#user_option').find('input[type=checkbox]:checked').length == 0) { alert('Please select atleast one checkbox'); return false; } if($("#users").is(":checked")) { if($('.option_users').find('input[type=checkbox]:checked').length == 0) { //alert(('input[type=checkbox]:checked').length); alert('Please select atleast one checkbox for user type'); return false; } } return true; }); &lt;/script&gt; {/literal} </code></pre>
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