function displayRow(){
var st = document.getElementById("t1").style.display;
if(st == "none"){
document.getElementById("t1").style.display = "";
}
if(st == ""){
document.getElementById("t1").style.display = "none";
}
}

function displayRow2(){
var st = document.getElementById("t2").style.display;
if(st == "none"){
document.getElementById("t2").style.display = "";
}
if(st == ""){
document.getElementById("t2").style.display = "none";
}
}

function displayRow3(){
var st = document.getElementById("t3").style.display;
if(st == "none"){
document.getElementById("t3").style.display = "";
}
if(st == ""){
document.getElementById("t3").style.display = "none";
}
}


function displayRow4(){
var st = document.getElementById("t4").style.display;
if(st == "none"){
document.getElementById("t4").style.display = "";
}
if(st == ""){
document.getElementById("t4").style.display = "none";
}
}


function displayRow5(){
var st = document.getElementById("t5").style.display;
if(st == "none"){
document.getElementById("t5").style.display = "";
}
if(st == ""){
document.getElementById("t5").style.display = "none";
}
}


function displayRow6(){
var st = document.getElementById("t6").style.display;
if(st == "none"){
document.getElementById("t6").style.display = "";
}
if(st == ""){
document.getElementById("t6").style.display = "none";
}
}

function displayRow7(){
var st = document.getElementById("t7").style.display;
if(st == "none"){
document.getElementById("t7").style.display = "";
}
if(st == ""){
document.getElementById("t7").style.display = "none";
}
}

function displayRow8(){
var st = document.getElementById("t8").style.display;
if(st == "none"){
document.getElementById("t8").style.display = "";
}
if(st == ""){
document.getElementById("t8").style.display = "none";
}
}

function displayRow9(){
var st = document.getElementById("t9").style.display;
if(st == "none"){
document.getElementById("t9").style.display = "";
}
if(st == ""){
document.getElementById("t9").style.display = "none";
}
}

function displayRow10(){
var st = document.getElementById("t10").style.display;
if(st == "none"){
document.getElementById("t10").style.display = "";
}
if(st == ""){
document.getElementById("t10").style.display = "none";
}
}