function toggle(target){
obj=document.getElementById(target);
obj1=document.getElementById(1);
obj2=document.getElementById(2);
obj3=document.getElementById(3);
obj4=document.getElementById(4);
obj5=document.getElementById(5);
obj10=document.getElementById(10);
obj11=document.getElementById(11);


obj.style.display=( (obj.style.display=='none') ? '' : 'none');

if(target==1){
obj2.style.display='none'
obj3.style.display='none'
obj4.style.display='none'
obj5.style.display='none'
obj10.style.display='none'
obj11.style.display='none'

}
if(target==2){
obj1.style.display='none'
obj3.style.display='none'
obj4.style.display='none'
obj5.style.display='none'
obj10.style.display='none'

}

}