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POjavascript with buttons
 

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    <p>I am creating a unit conversion program. I have everything working except for my calculate function and where the answer is being displayed. All i need help on is how to calculate each other the conversions, and to display the answer in a empty textbox that is below the calculate button. here is my code. </p> <pre class="lang-js prettyprint-override"><code>function showSecond() { if (document.getElementsByTagName("input")[0].checked){ div1.style.display = "block"; div.style.display = "none"; div2.style.display = "none"; } else if (document.getElementsByTagName("input")[1].checked){ div1.style.display = "none"; div.style.display = "block"; div2.style.display = "none"; } else { div1.style.display = "none"; div.style.display = "none"; div2.style.display = "block"; } } function Calc() { var amt = document.getElementsByName(amount) var res = document.getelementsByName(fin) if (document.getElementsByName("rad2")[0].checked) { var ch = amt * 2.2; document.write(fin) = ch; } else { res = amt / 2.2; document.write(res) } </code></pre> <pre class="lang-html prettyprint-override"><code>Select Conversion Type: &lt;br /&gt; &lt;input type = "radio" name = "rad1" onclick= "showSecond()" /&gt;Length &lt;br /&gt; &lt;input type = "radio" name = "rad1" onclick = "showSecond()" /&gt;Weight &lt;br /&gt; &lt;input type = "radio" name = "rad1" onclick = "showSecond()" /&gt;Volume &lt;br /&gt; &lt;div id = "div" style="display:none"&gt; Select Direction: &lt;br /&gt; &lt;input type = "radio" name = "rad2" value="PG" /&gt;Pounds to Kgs &lt;br /&gt; &lt;input type = "radio" name = "rad2" value="KP" /&gt;Kgs to Pounds &lt;br /&gt; Number to be converted: &lt;input type = "text" name = "amount" /&gt; &lt;br /&gt; &lt;input type = "button" value = "calculate" onclick = "Calc()" /&gt; &lt;br /&gt; &lt;input type ="text" name ="fin" value="" readonly="readonly"/&gt; &lt;/div&gt; &lt;div id = "div1" style="display:none"&gt; Select Direction: &lt;br /&gt; &lt;input type = "radio" name = "rad3" value="FM" /&gt;Feet to meters &lt;br /&gt; &lt;input type = "radio" name = "rad3" value="MF" /&gt;Meters to Feet &lt;br /&gt; Number to be converted: &lt;input type = "text" name = "amount" value=""/&gt; &lt;br /&gt; &lt;input type = "button" value = "calculate" onclick = "Calc()" /&gt; &lt;br /&gt; Result: &lt;br /&gt; &lt;input type="text" name ="fin" value ="" readonly="readonly"/&gt; &lt;/div&gt; &lt;div id = "div2" style="display:none"&gt; Select Direction: &lt;br /&gt; &lt;input type = "radio" name = "rad4" value="GL" /&gt;Gallons to Liters &lt;br /&gt; &lt;input type = "radio" name = "rad4" value="LG" /&gt;Liters to Gallons &lt;br /&gt; Number to be converted: &lt;input type = "text" name = "amount" /&gt; &lt;br /&gt; &lt;input type = "button" value = "calculate" onclick = "Calc()"&gt; &lt;br /&gt; Result: &lt;br /&gt; &lt;input type ="text" name = "fin" value="" readonly="readonly"/&gt; &lt;/div&gt; </code></pre>
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    1. COWell you are using document.write instead of setting a form field value. Looks like you should try to figure that out.
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    2. COYour `Calc` function is missing its closing brace. Or maybe that's just a typo here?
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    3. COit was a typo. but i'm still unable to get it to workout.
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