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POJavascript Form Validate
 

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  1. POJavascript Form Validate
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    <p>I am trying to validate input on an HTML form. I am trying to use one script to validate various forms that have several similar elements. All in all there are about 15 different fields but I am only putting 3. Below works on the form that has all of the elements but fails on any form that does not have a specific field.</p> <pre><code>if (form.name.value == ""){ // Check if blank alert( "\nEnter a name." ); form.name.focus(); return false; // Stop the form processing. } else if ( !/^\w{10}$/.test( form.phone.value )) { // Check for phone form.name.style.border="" alert( "\nEnter a valid phone number!" ); form.phone.focus(); return false; // Stop the form processing. } else{ return true; // Submit! </code></pre> <p>Since this only works if all are present what i want to do is validate only if it exists. I have tried nesting the validation under a statement that should check for the element before trying to validate it and if the element doesn't exist it should move on to the next. </p> <pre><code>if (document.forms[0].name){ //does field exist? if (form.name.value === ""){ alert( "\nEnter a name." ); form.name.focus(); return false; // Stop the form processing. } else{ return true; //field ok move on. } } else if (document.forms[0].phone){ if ( !/^\w{10}$/.test( form.phone.value )) { user form.name.style.border="" alert( "\nEnter a valid phone number!" ); form.phone.focus(); return false; // Stop the form processing. } else{ return true; //field ok move on. } } else{ return true; // Submit! } </code></pre> <p>Any help help would be appreciated!</p>
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    1. COYour "phone" regex does not seem very useful...
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    2. COI have a seperate function that strips spaces and non numerics onblur.
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