automatic form fillup

Is there a way that using javascript I can automatically fillup a form...

thanks in advance

 

yes, there is.

 

can you please show sample code please

 

this is a very broad subject / specification.

but... to put things in perspective, something along the lines of:

Name: <input type="text" id="name" name="name" /> <button id="me" data-name="dimitar"><< use your name</button>
...

<script>
document.getElementById("me").onclick = function() {
   document.getElementById("name").setAttribute("value", this.getAttribute("data-name"));
}
</script>

PHP:

clicking the button will insert the value of data-name property into the input form field.

p.s. i've not really run this to test it - it ought to work. you can apply a similar principle that references your form input fields and puts data into them...