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POValidating Form Number Type Javascript
 

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    <p>Hi I've got this problem. In my html code I can't seem to validate my input type "numbers". Iv'e used this code to try and validate it but it does not work </p> <pre><code>function validateForm() { var x=document.forms["form_name"]["number_name"].value; if (x==null || x=="") { alert("The following must be filled out"); return false; } } </code></pre> <p>I took this code from a web site that validates an input type "text" not numbers. I'm trying to implement a working "number" validation to my full html code. Btw this a sample of my form:</p> <pre><code>&lt;form action = "test.php" method = "post" onsubmit = "return validateForm()" name ="form_name"&gt; &lt;input type = "number" min = "0" placeholder = "0" name = "number_name" size = "2"/&gt; </code></pre> <p>I am wondering if it is possible to use the javascript valdiation above to validate the number form or is there an easier way to do it.</p> <p>*<em>In-Depth *</em> I made a quick html code for my first question and made multiple form of 'number'. It's incomplete... I decide to test one 'number' before implementing the code for the whole form This is my code so far:</p> <pre><code>&lt;html&gt; &lt;head&gt; &lt;script language="javascript"&gt; function validateForm() { var x=document.forms["order"]["cappuccino_qty"].value; if (x &gt;= 0 || x &lt; 0); { alert("The following must be filled out"); return false; } } &lt;/script&gt; &lt;body&gt; &lt;form action = "test.php" method = "post" onsubmit = "return validateForm()" name ="order"&gt; &lt;label class = "field" for = "Cappucino"&gt;Cappuccino &lt;input type = "number" min = "0" placeholder = "$3.75" name = "cappuccino_qty" size = "2"/&gt;&lt;br&gt; &lt;label class = "field" for = "Espresso"&gt;Espresso &lt;input type = "number" min = "0" placeholder = "$3.00" name = "espresso_qty" size = "2"/&gt;&lt;br&gt; &lt;label class = "field" for = "Double Espresso"&gt;Double Espresso &lt;input type = "number" min = "0" placeholder = "$4.25" name = "double_espresso_qty" size = "2"/&gt;&lt;br&gt; &lt;label class = "field" for = "Flat White"&gt;Flat White &lt;input type = "number" min = "0" placeholder = "$3.75" name = "flat_white_qty" size = "2"/&gt;&lt;br&gt; &lt;label class = "field" for = "Latte"&gt;Latte &lt;input type = "number" min = "0" placeholder = "$3.50" name = "latte_qty" size = "2"/&gt;&lt;br&gt; &lt;label class = "field" for = "Ice Coffee"&gt;Ice Coffee &lt;input type = "number" min = "0" placeholder = "$2.50" name = "ice_qty" size = "2"/&gt;&lt;br&gt; &lt;input type = "submit" value = "submit" name = "submit"/&gt; &lt;p&gt; &lt;/form&gt; &lt;/body&gt; &lt;/head&gt; &lt;/Html&gt; </code></pre>
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