var edit_content = new Array("your name",
                             "your e-mail",
                             "subject",
                             "your message");

function fill(){

document.feedback.name.value=edit_content[0];
document.feedback.mail.value=edit_content[1];
document.feedback.content.value=edit_content[2];
document.feedback.text.value=edit_content[3];

}

function eclear(nmbr){

var econtent = document.feedback.elements[nmbr].value;

    if(econtent==edit_content[nmbr])
    {
    document.feedback.elements[nmbr].value="";
    } else
    {
    document.feedback.elements[nmbr].value=econtent;
    }
}

function refill(nmbr){

var econtent = document.feedback.elements[nmbr].value;
         if(econtent==""){

            document.feedback.elements[nmbr].value=edit_content[nmbr];

         } else
         {
         document.feedback.elements[nmbr].value=econtent;
         }
}