function checklength(nextfield,chars,currfield) {

  x= document.abone[currfield].value.length
  if (x == chars) {
    eval('document.abone.' + nextfield + '.focus();');
  }

}

function formshowhide(id)
	{
	if(id == "other")
	{
	document.getElementById('other').style.display = "block";
	document.getElementById('creditcard').style.display = "none";
	}
	else
	{
	document.getElementById('other').style.display = "none";
	document.getElementById('creditcard').style.display = "block";
	}
	}