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POsimple validation on form
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  1. POsimple validation on form
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    copied!<p> I have to made simple validation form using jquery, ( <strong>no 3rd party plugins</strong>) for this i wrote following code..</p> <pre><code>&lt;html xmlns="http://www.w3.org/1999/xhtml"&gt; &lt;head&gt; &lt;title&gt;&lt;/title&gt; &lt;link rel="stylesheet" href="http://code.jquery.com/ui/1.9.1/themes/base/jquery-ui.css" /&gt; &lt;style&gt; .InvaildField { border: 0.5px solid red; } &lt;/style&gt; &lt;script type="text/javascript" src="http://code.jquery.com/jquery-latest.min.js"&gt;&lt;/script&gt; &lt;script type="text/javascript" src="http://code.jquery.com/ui/1.9.1/jquery-ui.js"&gt;&lt;/script&gt; &lt;script type="text/javascript"&gt; $(document).ready(function () { $('#btnSubmit').attr("disabled", true); $('.emptyField').blur(function () { if ($(this).val() == '') { $(this).removeAttr('class'); $(this).addClass('InvaildField'); $('#btnSubmit').attr("disabled", true); } else { $(this).removeAttr('class'); $('#btnSubmit').attr("disabled", false); } }); $('.emptyField').keyup(function () { if ($(this).val() == '') { $(this).removeAttr('class'); $(this).addClass('InvaildField'); $('#btnSubmit').attr("disabled", true); } else { $(this).removeAttr('class'); $('#btnSubmit').attr("disabled", false); } }); }); &lt;/script&gt; &lt;/head&gt; &lt;body&gt; &lt;table&gt; &lt;tr&gt; &lt;td&gt;Name&lt;/td&gt; &lt;td&gt;&lt;input class="emptyField" type="text"/&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;Email&lt;/td&gt; &lt;td&gt;&lt;input class="emptyField" type="text"/&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;Mobile Number&lt;/td&gt; &lt;td&gt;&lt;input class="emptyField" type="text"/&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td colspan="2"&gt; &lt;input id="btnSubmit" class="emptyField" type="button" value="Submit"/&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>but <strong>problem is when i fill first text box , button is enable</strong>, how to enable button when all texboxes are not null , </p> <p><a href="http://jsfiddle.net/xA7hH/" rel="nofollow">http://jsfiddle.net/xA7hH/</a></p>
 

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