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POcalculate dropdown value with variable
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  1. POcalculate dropdown value with variable
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    copied!<p>I can't find the solution anywhere on the internet. I have a certain code with a variable "price" and a drop-down which is being included.</p> <p>the drop-down has the values 1-40. When the value changes the total price should change immediately. as in the same row, as in final total price.</p> <pre><code>enter code here function calc(){ one = document.getElementById("price1").childNodes.item(1).childNodes.item(1).value; two = parseFloat(document.getElementById("price1").childNodes.item(5).textContent.replace("€","")) document.getElementById("price1").childNodes.item(9).textContent = one * two; } &lt;tr id="price1"&gt; &lt;td&gt;&lt;?php include('optie.php');?&gt;&lt;/td&gt; &lt;td&gt;&lt;strong&gt;3-gangen traiteurmenu&lt;/strong&gt;&lt;br&gt; (incl. brood en boter)&lt;br&gt;******&lt;br&gt; Creme van gerookte paling&lt;br&gt;******&lt;br&gt; Gestoofde hertensukade met aardappelgratin, rodekool en een stoofpeertje.&lt;br&gt;******&lt;br&gt; Kerstbal van witte en pure chocolade en een vanillesaus.&lt;br&gt;&lt;hr&gt; &lt;/td&gt; &lt;td&gt;&lt;?php $prijs1= "16.50";?&gt; &amp;euro;&lt;?php echo $prijs1; ?&gt;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;euro;&lt;/td&gt; &lt;td id="Total"&gt;&lt;/td&gt; &lt;/tr&gt; </code></pre> <p>I added this code above, this correctly calculate the first dropdownmenu. But now, I must be able to do this times 13, with all the dropdownmenu's</p> <p>I now know it has to be done with java, because that is a dynamic language.</p> <p>thanks in advance!</p> <p>Jasper</p> <p>beneath option.php</p> <pre><code>porties &lt;select&gt; &lt;option value="0"&gt;0&lt;/option&gt; &lt;option value="1"&gt;1&lt;/option&gt; &lt;option value="2"&gt;2&lt;/option&gt; &lt;option value="3"&gt;3&lt;/option&gt; &lt;option value="4"&gt;4&lt;/option&gt; &lt;option value="5"&gt;5&lt;/option&gt; &lt;option value="6"&gt;6&lt;/option&gt; &lt;option value="7"&gt;7&lt;/option&gt; &lt;option value="8"&gt;8&lt;/option&gt; &lt;option value="9"&gt;9&lt;/option&gt; &lt;option value="10"&gt;10&lt;/option&gt; &lt;option value="11"&gt;11&lt;/option&gt; &lt;option value="12"&gt;12&lt;/option&gt; &lt;option value="13"&gt;13&lt;/option&gt; &lt;option value="14"&gt;14&lt;/option&gt; &lt;option value="15"&gt;15&lt;/option&gt; &lt;option value="16"&gt;16&lt;/option&gt; &lt;option value="17"&gt;17&lt;/option&gt; &lt;option value="18"&gt;18&lt;/option&gt; &lt;option value="19"&gt;19&lt;/option&gt; &lt;option value="20"&gt;20&lt;/option&gt; &lt;option value="21"&gt;21&lt;/option&gt; &lt;option value="22"&gt;22&lt;/option&gt; &lt;option value="23"&gt;23&lt;/option&gt; &lt;option value="24"&gt;24&lt;/option&gt; &lt;option value="25"&gt;25&lt;/option&gt; &lt;option value="26"&gt;26&lt;/option&gt; &lt;option value="27"&gt;27&lt;/option&gt; &lt;option value="28"&gt;28&lt;/option&gt; &lt;option value="29"&gt;29&lt;/option&gt; &lt;option value="30"&gt;30&lt;/option&gt; &lt;option value="31"&gt;31&lt;/option&gt; &lt;option value="32"&gt;32&lt;/option&gt; &lt;option value="33"&gt;33&lt;/option&gt; &lt;option value="34"&gt;34&lt;/option&gt; &lt;option value="35"&gt;35&lt;/option&gt; &lt;option value="36"&gt;36&lt;/option&gt; &lt;option value="37"&gt;37&lt;/option&gt; &lt;option value="38"&gt;38&lt;/option&gt; &lt;option value="39"&gt;39&lt;/option&gt; &lt;option value="40"&gt;40&lt;/option&gt; &lt;/select&gt; </code></pre>
 

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