//Toggle an element visible/hidden
function showHideToggle(elmId) {
	var obj = document.getElementById(elmId);
	if(obj.style.display=='block'){
		obj.style.display='none';
	}else{
		obj.style.display='block';
	}		
}
//Hide an element
function hideElement(elmId) {
	var obj = document.getElementById(elmId);
	obj.style.display='none';
}
//Display a hidden element
function showElement(elmId) {
	var obj = document.getElementById(elmId);
	obj.style.display='block';
}