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    <p>This is commonly achieved with the <code>keyup</code> function. Whenever a key is released, a function can be called to make sure that all the fields are accurate, and if so, left the user know in an unobtrusive way. In your case, you could have the submit button disabled unless all the fields are correct.</p> <p>Note: You should never modify currently edited text fields with the function, or do anything else that will prove to be an annoyance to the user ;)</p> <hr> <p>Edit: I modified the code to validate every time a key is lifted for all input fields. I'm not fluent in JQuery, so I did it with vanilla Javascript. If need be, it should be pretty easy to convert.</p> <pre><code>$(function(){ var inputs = document.getElementsByTagName("input"); for(var i = 0; i &lt; inputs.length; i++) { inputs[i].addEventListener("keyup", function(){validate()}, true); } $('.error').hide(); $(".cool-button").click(function(){validate()}); function validate() { $('.error').hide(); $("label#name_error").hide(); $("label#invalid_error").hide(); $("label#email_error").hide(); $("label#invalid_phone_error").hide(); $("label#phone_error").hide(); $("label#zip_error").hide(); var name=$("input#contact_name").val(); var email=$("input#contact_email").val(); var emailRegEx =/^([a-zA-Z0-9])(([a-zA-Z0-9])*([\._-])?([a-zA-Z0-9]))*@(([a-zA-Z0-9\-])+(\.))+([a-zA-Z]{2,4})+$/ var phone=$("input#contact_phone").val(); var phone=phone.replace(/\s+-/g, ""); var phoneRegEx = /^(1-?)?\s?(\([2-9]\d{2}\)|\s?-?[2-9]\d{2})-?\s?[2-9]\d{2}-?\d{4}$/ var zip=$("input#contact_zip").val(); var best_time=$("input#contact_best_time").val(); var message=$("textarea#contact_message").val(); var timestamp=$("input#timestamp").val(); if(name==""){ $("label#name_error").show();$("input#contact_name").focus();return false; } if(email==""){ $("label#email_error").show();$("input#contact_email").focus();return false; } if (document.getElementById('contact_email').value.search(emailRegEx )==-1) { $("label#invalid_error").show();$("input#contact_email").focus();return false; } if(phone==""){ $("label#phone_error").show();$("input#contact_phone").focus();return false; } if (document.getElementById('contact_phone').value.search(phoneRegEx )==-1) { $("label#invalid_phone_error").show();$("input#contact_phone").focus();return false; } if(zip==""){ $("label#zip_error").show();$("input#contact_zip").focus();return false; } if(message==""){ $("label#message_error").show();$("textarea#contact_message").focus();return false; } else { var dataString='contact_name='+name+'&amp;contact_email='+email+'&amp;contact_phone='+phone+'&amp;contact_best_time='+best_time+'&amp;contact_zip='+zip+'&amp;timestamp='+timestamp+'&amp;contact_message='+encodeURIComponent(message); $.ajax({ type:"POST", url:"php/contact.php", data:dataString, success:function(){$('#contact-form').html("&lt;div id='message'&gt;&lt;/div&gt;");$('#message').html("&lt;h3&gt;Message Sent&lt;/h3&gt;").append("&lt;p&gt;Thank you for contacting us. We'll be in touch. &lt;br /&gt;&lt;br /&gt;If you have any further questions, you can always email us at info@wirecrafters.com or call us at 800-924-9473&lt;/p&gt;").hide().fadeIn(800,function(){$('#message').append("&lt;img id='checkmark' src='images/submit2.png' /&gt;");});}}); } return false; }; }); </code></pre>
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    1. POJavascript Validate on input change, only submit when Submit button clicked
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    1. PTAnswer
    1. USJeffrey Sweeney
    1. USJeffrey Sweeney
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    1. COIS there a way I can just modify the code I already have above? I have custom jQuery tooltips as validation messages already built in. I'd like to do everything BEFORE the "else" statement when the input fields lose focus, and then perform the "else" action ONLY when all of the fields are valid, AND ONLY when the user clicks the Submit button.
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      1. USadamdehaven
    2. COit may seem like a lot of work or code to add but jquery tools validator is a small plugin and will save you tons of code if you are doing the above everytime you want to submit a form. A form plugin will save you from having to manually serialize the form (which is what you did above as well)
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      1. USMatt Wolfe
    3. COTo redo all of the forms on the site at this point would be a HUGE undertaking :( Is there not a way to just split the function into two different things where: Function 1 - Gets the value on blur or on change from the input field, and then validates, and throws the popup message if incorrect. Function 2 - If the first function sets some variable (or whatever better way to do it) to "valid" or something, then when the user clicks the Submit button, the form is submitted?
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      1. USadamdehaven
 

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