mercredi 22 avril 2015

JavaScript - Outputting a line with Document Write

I am trying to output a line with the javascript Document.Write function, however, on Submitting the form, the line just flashes and disappears

any thoughts?

<!DOCTYPE html>

        <title>Form Validation</title>

        <script type="text/javascript">
            function checkAge() {

                var x = document.forms['myForm']['age'].value;

                if(x < 18) {
                    document.write("<p>You are too Young. Form NOT submitted</p>");
                } else {
                    document.write("Form sent successfully");

            function tips() {
                alert("Please enter your Name in the name Box, \nand Your age in the Age box.\nYou have to be Over 18 to submit the form");

        <form id="myForm" action="formvalidation.html" onsubmit="checkAge();">    
            Name: <input type="text" name="text" id="name">
            Age: <input type="text" name="age" id="age">
            <input type="submit" value="Submit">
            <input type="button" value="Help" id="hBtn" onclick="tips();">


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