// JavaScript Document

function revealMenu(pBlock)
{
	var element = document.getElementById(pBlock);
	var elements = getElementsByClassName('div', 'leftmenu');	  	

	for (i = 0; i < elements.length; i++)
	{
		if (elements[i].style.display == 'block')
		{
			elements[i].style.display = 'none';
		}
	}

	element.style.display = 'block';
}


//gets elements of a certain HTML tag and CLASS
function getElementsByClassName(pTag, pClass)
{
	var array = new Array();
	var elements =  document.getElementsByTagName(pTag);
	
	for (i = 0; i < elements.length; i++)
	{
		if (elements[i].className == pClass)
		{
				array.push(elements[i]);
		}
	}

	return array;
}