javascript - Validation With Java Script and printing -

i have form in html , if fields left blank, javascript print inside fields error. please can 1 give me piece of code validate form , print error on top of form if left blank , not inside fields of form?

my form:

<form id="contact" onsubmit="checkcontactform(); return false;" onreset="resetform();"> <p>fill in form below send me message!</p>      <div id="errormessage"></div>  <p> <label for="">  </label> <input type="text" name="" id="" onfocus="" />  <p>   <label for="name">name:</label>   <input type="text" name="name" id="name" onfocus="resetfield(this);" /> </p> <p>   <label for="email">e-mail address:</label>   <input type="text" name="email" id="email" onfocus="resetfield(this);" /> </p> <p>   <label for="message">your message:</label>   <textarea name="message" id="message" rows="5" cols="25" onfocus="resetfield(this);"></textarea> </p> <p>   <button type="submit">send message</button>   <button type="reset">reset form</button> </p> 

my javascript:

var requiredfields = ["name", "email", "message"];  function checkcontactform() {     var myform = document.forms[0];     (i in requiredfields) {         fieldname = requiredfields[i];         if (!myform[fieldname].value || myform[fieldname].value == "error") {             myform[fieldname].style.color = "#f66";             myform[fieldname].value = "";             var emptyfields = true;         }     }      if (!emptyfields) { myform.submit(); } }  function resetfield(myfield) {     if (myfield.value == "error") {         myfield.style.color = "#000";         myfield.value = "";     } }  function resetform(myform) {     var myform = document.forms[0];     (i in requiredfields) {         fieldname = requiredfields[i];         myform[fieldname].style.color = "#000";     } } 

since html5 there form-validation api (http://www.w3schools.com/js/js_form_validation.asp)

here can find pretty "tutorial": http://www.smashingmagazine.com/2009/07/07/web-form-validation-best-practices-and-tutorials/