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    <p>Google is your friend... As is StackOverflow!!</p> <p>You need to use JavaScript here, perhaps as well as PHP...</p> <p><strong>Restrict to Numbers with decimal place:</strong></p> <p><a href="https://stackoverflow.com/questions/2808184/restricting-input-to-textbox-allowing-only-numbers-and-decimal-point">Restricting input to textbox: allowing only numbers and decimal point</a></p> <pre><code>&lt;HTML&gt; &lt;HEAD&gt; &lt;SCRIPT language=Javascript&gt; &lt;!-- function isNumberKey(evt) { var charCode = (evt.which) ? evt.which : event.keyCode; if (charCode != 46 &amp;&amp; charCode &gt; 31 &amp;&amp; (charCode &lt; 48 || charCode &gt; 57)) return false; return true; } //--&gt; &lt;/SCRIPT&gt; &lt;/HEAD&gt; &lt;BODY&gt; &lt;INPUT id="txtChar" onkeypress="return isNumberKey(event)" type="text" name="txtChar"&gt; &lt;/BODY&gt; &lt;/HTML&gt; </code></pre> <p><strong>Sum Numbers with readonly field:</strong></p> <p><a href="https://stackoverflow.com/questions/3131410/adding-the-text-box-values-and-display-it-using-javascript">adding the text box values and display it using javascript</a></p> <pre><code>&lt;form name="myFormName"&gt; &lt;p&gt;&lt;input type="text" name="myInputName1" value="25.3"&gt;&lt;/p&gt; &lt;p&gt;&lt;input type="text" name="myInputName2" value="14.2"&gt;&lt;/p&gt; &lt;/form&gt; &lt;div id="total"&gt;&lt;/div&gt; &lt;script type="text/javascript&gt; var total = parseFloat(0, 10); total += parseFloat(document.myFormName.myInputName1.value, 10); total += parseFloat(document.myFormName.myInputName2.value, 10); document.getElementById("total").innerHTML = "Total is " + total; &lt;/script&gt; </code></pre> <p><strong>Round to 4 Decimal Places;:</strong></p> <p><a href="https://stackoverflow.com/a/7269919/1305169">https://stackoverflow.com/a/7269919/1305169</a></p> <pre><code>Math.round(val*10000)/10000 </code></pre> <p>Hope this helps!</p> <p>EDIT:</p> <p>You need to change your Code to the following;</p> <p><strong>Your</strong> <code>sum</code> <strong>Function:</strong></p> <pre><code>function sum() { var TotalLBCReceipts = num("TotalLBCReceipts"); var TotalKaaseReceipts = num("TotalKaaseReceipts"); var TakoradiToFactory = num("TakoradiToFactory2"); var KaaseToFactory = num("KaaseToFactory2"); var SampleResidue = num("SampleResidue"); var Sweepings = num("Sweepings"); var OrganicCocoa = num("OrganicCocoa2"); var Confiscated = num("Confiscated"); var Cuttings = num("Cuttings"); var r = document.getElementById("GRANDTOTAL1"); if (r != null) { r.value = Math.round(( TotalLBCReceipts + TotalKaaseReceipts + TakoradiToFactory + KaaseToFactory + SampleResidue + Sweepings + OrganicCocoa + Confiscated + Cuttings) * 10000) / 10000; } } </code></pre> <p><strong>And your</strong> <code>num</code> <strong>function:</strong></p> <pre><code>function num(id) { var e = document.getElementById(id); if (e != null) { return Math.round(e.value*10000)/10000; } return 0; } </code></pre> <p>You can probably just return the plain number from the <code>num</code> Function, however I show it here for completeness!</p>
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    1. COthanks very much. Restrict to Numbers with decimal place worked but my totals text field can not calculate for decimal.
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    2. COl will like to put the original codes on the answer section so that u see what l actually went
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    3. COYeah, please post what you have tried so far, and we can have a look!
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