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POJavascript: set label text
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  1. POJavascript: set label text
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    copied!<p>I'm trying to implement a generic function for a form with several fields in the following format.</p> <pre><code>&lt;label id="LblTextCount"&gt;&lt;/label&gt; &lt;textarea name="text" onKeyPress="checkLength(this, 512, LblTextCount)"&gt; &lt;/textarea&gt; </code></pre> <p>And the following JavaScript:</p> <pre><code>function checkLength(object, maxlength, label) { charsleft = (maxlength - object.value.length); // never allow to exceed the specified limit if( charsleft &lt; 0 ) { object.value = object.value.substring(0, maxlength-1); } // I'm trying to set the value of charsleft into the label label.innerText = charsleft; document.getElementById('LblTextCount').InnerHTML = charsleft; } </code></pre> <p>The first part works fine, but I'm <b>not able to set the <code>charsleft</code>value into the label</b>. What am I doing wrong? Please note that I'm looking for a dynamic approach instead of hard coding the label name into the JS function. JQuery would be fine too :)</p> <p><hr> <b>Solution</b> - thanks to all!</p> <p>HTML</p> <pre><code>&lt;label id="LblTextCount"&gt;&lt;/label&gt; &lt;textarea name="text"&gt; &lt;/textarea&gt; </code></pre> <p>JS</p> <pre><code>$(document).ready(function() { $('textarea[name=text]').keypress(function(e) { checkLength($(this),512,$('#LblTextCount')); }).focus(function() { checkLength($(this),512,$('#LblTextCount')); }); }); function checkLength(obj, maxlength, label) { var charsleft = (maxlength - obj.val().length); // never allow to exceed the specified limit if( charsleft &lt; 0 ) { obj.val(obj.val().substring(0, maxlength-1)); } // set the value of charsleft into the label $(label).html(charsleft); } </code></pre>
 

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