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POHow do I read a variable output from an html form and use it in the webpage?
 

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  1. POHow do I read a variable output from an html form and use it in the webpage?
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    <p>OK, I've tried to get this to work - but just can't seem to see the way...</p> <p>What I am trying to do is have a form ask for an index, when I submit it will read an XML file (bowlist.xml) and give me the data for the matching index.</p> <p>Here is the entire code:</p> <pre><code> &lt;!DOCTYPE html&gt; &lt;html&gt; &lt;body&gt; &lt;form action=""&gt; Bowl #: &lt;input type="text" name="bowlidx" value="" /&gt;&lt;br /&gt; &lt;input type="submit" value="Submit" /&gt; &lt;/form&gt; &lt;script type="text/javascript"&gt; var index = &lt;%=Request.QueryString(bowlidx)%&gt; document.write('index is ' + index) if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.open("GET","bowlist.xml",false); xmlhttp.send(); xmlDoc=xmlhttp.responseXML; document.write("&lt;table border='1'&gt;"); var x=xmlDoc.getElementsByTagName("product"); for (i=0;i&lt;x.length;i++) { if(x[i].getElementsByTagName("id")[0].childNodes[0].nodeValue != index) continue; document.write("&lt;tr&gt;&lt;td&gt;"); document.write(x[i].getElementsByTagName("id")[0].childNodes[0].nodeValue); document.write("&lt;/td&gt;&lt;td&gt;"); document.write(x[i].getElementsByTagName("code")[0].childNodes[0].nodeValue); document.write("&lt;/td&gt;&lt;td&gt;"); document.write(x[i].getElementsByTagName("image")[0].childNodes[0].nodeValue); document.write("&lt;/td&gt;&lt;/tr&gt;"); } document.write("&lt;/table&gt;");&lt;/script&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>I get the form, enter and submit the index, and nothing happens.</p> <p>Where am I going wrong on this?</p> <p>I should add that the javascript search does work if I enter an existing index in the "if(x[i].getElementsByTagName("id")[0].childNodes[0].nodeValue != index)" line.</p>
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    1. USStephen
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      1. POHow do I read a variable output from an html form and use it in the webpage?
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    1. COYour code snippet is incomplete.Correct the given code or post it in a fiddle.
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      1. POHow do I read a variable output from an html form and use it in the webpage?
      1. USAhamed Mustafa M
    2. COWhich code is incorrect? The 2nd code snippet works, I just included it to give some idea of what I am trying to do. The form code is what I have from another source, that's wat I am asking about. And what is a 'fiddle'?
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      1. USStephen
    3. COThe 2nd one is incomplete, is it from a javascript function? Where this function is defined ? Fiddle is a site to post sample code snippets. Link : http://jsfiddle.net/
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      1. POHow do I read a variable output from an html form and use it in the webpage?
      1. USAhamed Mustafa M
 

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