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POInline form Validation
 

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  1. POInline form Validation
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    <p>I'm trying to get my form to validate inline but can't seem to get the right syntax, at the moment I have this, which does nothing yet. The first function, formhandler is meant to change the span elements text if the element gets blured and take away the error text once the field is focused at the moment it does neither of these.</p> <pre><code>&lt;html&gt; &lt;script type = "text/javascript"&gt; document.getElementById("form").onfocus = function formHandler() { for(var i = 0; i &lt; document.getElementById("form").length; i+=1){ if(document.getElementById("form").elements[i].type == 'text') { if(document.getElementById("form").elements[i].focus()) { var onode = document.getElementById("form").elements[i].nextSibling; onode.innerHTML = ""; valid = true; } else if(document.getElementById("form").elements[i].blur()) { var onode = document.getElementById("form").elements[i].nextSibling; onode.innerHTML = "Please Fill in Field"; valid = false; } } } } function validate() { var valid = false; for(var i = 0; i &lt; document.getElementById("form").length; i+=1){ if(document.getElementById("form").elements[i].type == 'text') { if(document.getElementById("form").elements[i].value == "") { var onode = document.getElementById("form").elements[i].nextSibling; onode.innerHTML = "Please Fill in Field"; valid = true; } else{ var onode = document.getElementById("form").elements[i].nextSibling; onode.innerHTML = ""; valid = false; } } } } document.getElementById("form").onsubmit = validate; &lt;/script&gt; &lt;head&gt; &lt;title&gt;Question 1 / Vraag 1 - Basic JavaScript Validaton / Basiese JavaScript validasie &lt;/title&gt; &lt;link rel="Stylesheet" type="text/css" href="style.css" /&gt; &lt;/head&gt; &lt;body&gt; &lt;form method="get" action="" id = "form"&gt; &lt;table&gt; &lt;tr&gt; &lt;td&gt; Firstname:&lt;/td&gt; &lt;td&gt; &lt;input type="text" name="firstname" id="firstname" /&gt;&lt;span id="fnError"&gt; &lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt; Surname:&lt;/td&gt; &lt;td&gt; &lt;input type="text" name="surname" id="surname" /&gt;&lt;span id="snError"&gt; &lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt; Age:&lt;/td&gt; &lt;td&gt; &lt;input type="text" name="age" id="age" /&gt;&lt;span id="aError"&gt; &lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt; Email:&lt;/td&gt; &lt;td&gt;&lt;input type="text" name="email" id="email" /&gt;&lt;span id="eError"&gt; &lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt;&lt;td colspan="2"&gt;&lt;input type="button" value="Validate" onclick = "validate()"/&gt;&lt;/td&gt;&lt;/tr&gt; &lt;/table&gt; &lt;/form&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>I'm trying to achieve this without the use of jquery, so please don't suggest it, thanks in advance.</p>
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    1. CO*can't seem to get the right syntax*: Can you elaborate? What's is it doing wrong? What isn't it doing right? Is there any place in the source code to which you can narrow down the problem?
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    2. CO@David sorry, The first function, formhandler is meant to change the span elements text if the element gets blured and take away the error text once the field is focused at the moment it does neither of these.
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    3. COtry debugging or put alerts in between and see where its breaking. Check of syntax errors too.
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      1. USShamis Shukoor
 

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