function changeInput()
{document.getElementById('pass1').style.display='none';document.getElementById('pass2').style.display='';document.getElementById('password').focus();}
function restoreInput()
{if(document.getElementById('password').value=='')
{document.getElementById('pass1').style.display='';document.getElementById('pass2').style.display='none';}}
function changeInputb()
{document.getElementById('pass3').style.display='none';document.getElementById('pass4').style.display='';document.getElementById('password').focus();}
function restoreInputb()
{if(document.getElementById('password').value=='')
{document.getElementById('pass3').style.display='';document.getElementById('pass4').style.display='none';}}