function Show(id) {
   obj = document.getElementsByTagName("div");
   if (obj[id].style.visibility == 'hidden'){
   	obj[id].style.visibility = 'visible';
   }
   
   if (obj[id].style.display == 'none'){
   	obj[id].style.display = 'block';
   }
}

function Hide(id) {
    obj = document.getElementsByTagName("div");
    if (obj[id].style.visibility == 'visible'){
    	obj[id].style.visibility = 'hidden';
    }
    
    if (obj[id].style.display == 'block'){
   		obj[id].style.display = 'none';
   	}
}