function toggle(ID){

var orig=document.getElementById(ID).style.display;

var ROW2 = "R2" + ID;
var rows=["A","B","C","D","R2"];

if(orig =='none'){

for (i=0; i < rows.length; i++){
var id=rows[i] + ID;
document.getElementById(id).style.backgroundColor='#cfcfcf';
}

document.getElementById(ID).style.display='block';
}
else{

for(i=0; i<rows.length; i++){
var id=rows[i] + ID;
document.getElementById(id).style.backgroundColor='white';
}
document.getElementById(ID).style.display='none';

}



}