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    <p>You had one of your ids (Goal) spelled with a capital letter and your button was a submit type so it was trying to submit it to the server. </p> <pre><code> &lt;html&gt; &lt;head&gt; &lt;title&gt;Daily Calorie Goal&lt;/title&gt; &lt;/head&gt; &lt;body&gt; &lt;script type="text/javascript" language="javascript"&gt; function Calculate() { var gender = document.getElementById("gender").value; var weight = document.getElementById("weight").value; var height = document.getElementById("height").value; var age = document.getElementById("age").value; var goal = document.getElementById("goal").value; if(gender=="male") { val1 = 6.23 * weight; val2 = 12.7 * height; val3 = 6.8 * age; dailyDeficit = (goal * 3500) / 90; result = 66 + val1 + val2 - val3; cals = result * 1.55; calMax = cals - dailyDeficit; } else if (gender=="female") { val1 = 6.23 * weight; val2 = 4.7 * height; val3 = 4.7 * age; dailyDeficit = (goal * 3500) / 90; result = 655 + val1 + val2 - val3; cals = result * 1.55; calMax = cals - dailyDeficit; } document.write ('This is your Daily Calorie Goal. To achieve your goal, just consume fewer than this number of calories every day:&lt;b&gt; ' + calMax.toFixed(2) + '&lt;/b&gt;&lt;br&gt;'); } &lt;/script&gt; &lt;form action="#"&gt; Gender : &lt;select id="gender"&gt;&lt;option value="male"&gt;Male&lt;/option&gt;&lt;option value="female"&gt;Female&lt;/option&gt;&lt;/select&gt;&lt;br /&gt; Weight (lbs.) : &lt;input type="text" id="weight" /&gt;&lt;br /&gt; Height (inches): &lt;input type="text" id="height" /&gt;&lt;br /&gt; Age : &lt;input type="text" id="age" /&gt;&lt;br /&gt; Goal : &lt;select id="goal"&gt;&lt;option value=5&gt;Lose 5 Pounds&lt;/option&gt;&lt;option value=10&gt;Lose 10 Pounds&lt;/option&gt;&lt;option value=15&gt;Lose 15 Pounds&lt;/option&gt;&lt;option value=20&gt;Lose 20 Pounds&lt;/option&gt;&lt;option value=25&gt;Lose 25 Pounds&lt;/option&gt;&lt;/select&gt;&lt;br /&gt; &lt;/fieldset&gt; &lt;input type="button" value="Get My Daily Calorie Goal" onclick="Calculate()" /&gt; &lt;/form&gt; &lt;/html&gt; </code></pre>
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    1. POWhat's wrong with this code? I think I messed up in the communication between HTML and Javascript
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    1. USMichal
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