function clearUserName_head()
{
if(document.head.email.value=='Username / E-mail')
document.head.email.value='';
}
function getUserName_head()
{
if(document.head.email.value=='')
document.head.email.value='Username / E-mail';
}

function clearUserName_pass()
{
if(document.head.pass.value=='******')
document.head.pass.value='';
}
function getUserName_pass()
{
if(document.head.pass.value=='')
document.head.pass.value='******';
}// JavaScript Document