function showElement(idelement)
{
//get the element
var el = document.getElementById(idelement);
var divel = document.getElementById('div_'+idelement);
	if(el != currentElement)
	{	
	currentElement.style.display = 'none';	
	divElement.className = 'tabfree';
	el.style.display = 'block';
	divel.className = 'tabselected';
	//register value
	currentElement = el;		
	divElement = divel;
	}
}
function rollOverElement(idelement2)
{
//get the element
var el2 = document.getElementById(idelement2);
var divel2 = document.getElementById('div_'+idelement2);
	if(el2 != currentElement)
	{	
	divElement2.className = 'tabfree';
	divel2.className = '';
	}
}
function rollOutElement(idelement)
{
//get the element
var el2 = document.getElementById(idelement);
var divel2 = document.getElementById('div_'+idelement);
	if(el2 != currentElement)
	{	
	divElement2.className = 'tabfree';
	divel2.className = 'tabfree';
	
	}
}