//Show Divs by id
						function revealDiv(div_name) {
							var inDivVar = document.getElementById(div_name);
							if( inDivVar == null ) {
								return false;
							}
					
							inDivVar.style.display = "block";
							return true;
						}
//Hide Divs by id					
						function concealDiv(div_name) {
							var inDivVar = document.getElementById(div_name);
							if( inDivVar == null ) {
								return false;
							}
					
							inDivVar.style.display = "none";
							return true;
						}