function sec(x) {

r="l"+x;
for (var i = 1; i <= 5; i++) {
s="sec"+i;
t="l"+s;

if(x==s){
document.getElementById(x).style.display = "block";
document.getElementById(r).style.borderBottom = "0px";
}
else {
document.getElementById(s).style.display = "none";
document.getElementById(t).style.borderBottom = "1px solid #333333";
}}}

function delfield(x) {

document.getElementById(x).value = "";

}