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POhow to prevent javascript function from changing other values in html form
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  1. POhow to prevent javascript function from changing other values in html form
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    copied!<p>I have two select blocks in my html form:</p> <pre><code>&lt;select id="select1"&gt; &lt;option&gt;1&lt;/option&gt; &lt;option&gt;2&lt;/option&gt; &lt;option&gt;3&lt;/option&gt; &lt;/select&gt; &lt;select id="select2" onchange="someFunc()"&gt; &lt;option&gt;A/option&gt; &lt;option&gt;B&lt;/option&gt; &lt;/select&gt; </code></pre> <p>I have a validateForm() function called from the form tag @onSubmit. the "someFunc" function populates some innerHTML elsewhere in the form. The issue I'm having, is that when I hit submit, the value of select1 reverts to its original default value, and the validateForm function fails. </p> <p>the someFunc function is really long, so I didn't post the whole thing, but essentially what it does is check a string value and populate html, like:</p> <pre><code>if(select2.value = 'A'){ document.getElementById('anotherElement').innerHTML= '&lt;h1&gt;a new tag&lt;/h1&gt;'; } </code></pre> <p>is there another att besides @onChange? </p> <p>Ok, here is a complete html form that describes the problem I am having: </p> <pre><code>&lt;html&gt; &lt;head&gt; &lt;title&gt;javascript q&lt;/title&gt; &lt;script&gt; function updateTag(){ document.getElementById('newHeading').innerHTML='&lt;p id="status"&gt;updated&lt;/p&gt;'; } function validateForm(){ var s1 = document.getElementById('select1'); var s2 = document.getElementById('select2'); if( s1.value = 'please select' ){ alert('please select a value from the pulldown'); return false; } // updated html needs to have been performed and value selected if(document.getElementById('status') == null ){ alert('status does not exist'); } } &lt;/script&gt; &lt;/head&gt; &lt;body&gt; &lt;h1&gt;Javascript Q&lt;/h1&gt; &lt;form id="testForm" onSubmit="return validateForm();"&gt; &lt;select id="select1"&gt; &lt;option&gt;please select&lt;/option&gt; &lt;option&gt;1&lt;/option&gt; &lt;option&gt;2&lt;/option&gt; &lt;option&gt;3&lt;/option&gt; &lt;/select&gt; &lt;select id="select2" onchange="updateTag()"&gt; &lt;option&gt;please select&lt;/option&gt; &lt;option&gt;a&lt;/option&gt; &lt;option&gt;b&lt;/option&gt; &lt;option&gt;c&lt;/option&gt; &lt;/select&gt; &lt;input type="submit" value="submit"/&gt; &lt;div id="newHeading"&gt; &lt;/div&gt; &lt;/form&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>what happens is, I select a value from each pulldown, hit submit, then the value of select1 reverts to its orig val, and fails the validation</p> <p>hope that's better.</p> <p>thanks, bp</p>
 

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