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    <p><a href="http://jsfiddle.net/goldentoa11/P3hs8/1/" rel="nofollow">http://jsfiddle.net/goldentoa11/P3hs8/1/</a></p> <p>I added a parameter to your "SelectSubCat()" called txtValue. This is so you can pass the value you want to compare against.</p> <p>You'll need to call the "SelectSubCat()" function with the text field's value when you call it. I added an id to the text field called "selectText", and when I click the button I had added </p> <pre><code>onclick="SelectSubCat(document.getElementById('selectText').value)" </code></pre> <p>and this will call the function with the text of the input. Then instead of using the value from the form, it uses the value passed to it, and creates the appropriate sub category. Lastly, you need to change the Category's "onchange" function to just pass an empty string.</p> <pre><code>function SelectSubCat(txtValue) { if(txtValue == "") txtValue = document.drop_list.Category.value; // This line is to set txtValue to Category's value if the current value is blank. // In other words, if it was called by changing the dropdown, // give it the drop down's value. // ON selection of category this function will work removeAllOptions(document.drop_list.SubCat); addOption(document.drop_list.SubCat, "", "SubCat", ""); if (txtValue == 'Fruits') { addOption(document.drop_list.SubCat, "Mango", "Mango"); addOption(document.drop_list.SubCat, "Banana", "Banana"); addOption(document.drop_list.SubCat, "Orange", "Orange"); } if (txtValue == 'Games') { addOption(document.drop_list.SubCat, "Cricket", "Cricket"); addOption(document.drop_list.SubCat, "Football", "Football"); addOption(document.drop_list.SubCat, "Polo", "Polo", ""); } if (txtValue == 'Scripts') { addOption(document.drop_list.SubCat, "PHP", "PHP"); addOption(document.drop_list.SubCat, "ASP", "ASP"); addOption(document.drop_list.SubCat, "Perl", "Perl"); } } </code></pre>
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    1. COHi it doesn't populate the subcategory list when I type in the txtValue in the text field it only works with when I select something from the category drop-down menu.
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    2. COdid you follow the jsfiddle link? I have it working there. edit: oops, didn't realize that enter posts the comment. Anyways, make sure that you add an id of 'selectText' to your textfield, and then you add an onclick to your button like the code I posted. It should work.
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