function changeTab(id1, id2)
{	
	if(document.getElementById(id1).style == 'block')
	{
		document.getElementById(id1).style.display = 'none';		
		document.getElementById(id2).style.display = 'block';		
	}
	else
	{
		document.getElementById(id2).style.display = 'none';		
		document.getElementById(id1).style.display = 'block';				
	}
}

function changeTab3(id1, id2, id3)
{
	if(document.getElementById(id1).style.display == 'block')
	{
	}
	else
	{
		document.getElementById(id2).style.display = 'none';
		document.getElementById(id3).style.display = 'none';		
		document.getElementById(id1).style.display = 'block';		
	}
}

function changeStyle3(id1,id2,id3)
{
	document.getElementById(id1).className = 'actived';
	document.getElementById(id2).className = 'extra-button';
	document.getElementById(id3).className = 'extra-button';
}

function switchTab(id1, id2)
{	
	temp = document.getElementById(id2).style.display;
	document.getElementById(id2).style.display = document.getElementById(id1).style.display;		
	document.getElementById(id1).style.display = temp;
}
function switchTabEdit(id1, id2, checkbox)
{	
	var check = document.getElementById(checkbox);
	if (check.checked)
	{
		document.getElementById(id1).style.display = 'block';
		document.getElementById(id2).style.display = 'none';
	}
	else{
		document.getElementById(id1).style.display = 'none';
		document.getElementById(id2).style.display = 'block';
	}
}