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POMake it 100% of all
 

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    <p>I have 3 dropdown boxes, in which there are values of 10 to 100. I want user to select cumulative value of 100 from all dropdown boxes. Which means, if I select 20 from the first dropdown box the next 2 dropdown should be left with the options of selecting total of 100</p> <p>What I have done so far is here: <a href="http://jsfiddle.net/rzBej/26/" rel="nofollow">CHECK IT HERE (JS FIDDLE)</a></p> <p><strong>HTML</strong> </p> <pre><code>&lt;select id="foreign" class="me"&gt; &lt;option value=""&gt;Foreign Policy&lt;/option&gt; &lt;option value="10"&gt;10%&lt;/option&gt; &lt;option value="20"&gt;20%&lt;/option&gt; &lt;option value="30"&gt;30%&lt;/option&gt; &lt;option value="40"&gt;40%&lt;/option&gt; &lt;option value="50"&gt;50%&lt;/option&gt; &lt;option value="60"&gt;60%&lt;/option&gt; &lt;option value="70"&gt;70%&lt;/option&gt; &lt;option value="80"&gt;80%&lt;/option&gt; &lt;option value="90"&gt;90%&lt;/option&gt; &lt;option value="100"&gt;100%&lt;/option&gt; &lt;/select&gt; &lt;select id="economy" class="me"&gt; &lt;option value=""&gt;Economy Policy&lt;/option&gt; &lt;option value="10"&gt;10%&lt;/option&gt; &lt;option value="20"&gt;20%&lt;/option&gt; &lt;option value="30"&gt;30%&lt;/option&gt; &lt;option value="40"&gt;40%&lt;/option&gt; &lt;option value="50"&gt;50%&lt;/option&gt; &lt;option value="60"&gt;60%&lt;/option&gt; &lt;option value="70"&gt;70%&lt;/option&gt; &lt;option value="80"&gt;80%&lt;/option&gt; &lt;option value="90"&gt;90%&lt;/option&gt; &lt;option value="100"&gt;100%&lt;/option&gt; &lt;/select&gt; &lt;select id="social" class="me"&gt; &lt;option value=""&gt;Social Policy&lt;/option&gt; &lt;option value="10"&gt;10%&lt;/option&gt; &lt;option value="20"&gt;20%&lt;/option&gt; &lt;option value="30"&gt;30%&lt;/option&gt; &lt;option value="40"&gt;40%&lt;/option&gt; &lt;option value="50"&gt;50%&lt;/option&gt; &lt;option value="60"&gt;60%&lt;/option&gt; &lt;option value="70"&gt;70%&lt;/option&gt; &lt;option value="80"&gt;80%&lt;/option&gt; &lt;option value="90"&gt;90%&lt;/option&gt; &lt;option value="100"&gt;100%&lt;/option&gt; &lt;/select&gt; &lt;br /&gt; &lt;span id="message"&gt;&lt;/span&gt; </code></pre> <p><strong>JavaScript</strong> </p> <pre><code>/*var total = new Array(); $('#foreign option').each(function() { total.push($(this).val()); }); console.log(total);*/ var total = 100; var ids = ['foreign', 'social', 'economy']; var current_selected; $('.me').change(function() { current_selected = $(this).attr('id'); var socval = $('#' + current_selected + ' option:selected').val(); total = total - socval; if ($.inArray($(this).attr('id'), ids) &gt; -1) { ids.splice($.inArray($(this).attr('id'), ids), 1); } for (var i = 0; i &lt; ids.length; i++) { $('#' + ids[i] + ' option').each(function() { if ($(this).val() &gt;= total) { $(this).attr('disabled', true); } else { $(this).attr('disabled', false); } }); } if (total &lt;= 0) { total = 100; } console.log(total); ids.push(current_selected); }); </code></pre> <p>It is pretty much working, with some minor faults.</p> <p><strong>UPDATE</strong> I think I solved it. </p> <p><a href="http://jsfiddle.net/rzBej/61/" rel="nofollow">SOLVED FIDDLE</a></p> <p>Thanks who helped. </p> <p>Regards</p>
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