How to clear the text when clicked on any other controls
<p>the below js script works fine but there is small problem and the problem is that:</p>

<p>i have a textbox with multiline and when the user clicks on it and it does clear the textbox but the problem is; when the user click on Save button (asp.net control button) to save the textbox value and i want that to ignore on code behind and also client side. </p>

<p>one thing i can do is to compare the value and clear if it is matached but what if; if i have many controls and dont want to spread the string every where in the code...</p>

<p>looking for a optimized solution.</p>

<pre><code>&lt;asp:TextBox runat="server" ID="txtNew" 
onclick="if (this.value == 'Enter here...') this.value = ''" TextMode="MultiLine"
Rows="7" Width="100%"&gt;Enter here...&lt;/asp:TextBox&gt;
</code></pre>
