function setMenu(menuItem)
{

	if ( document.getElementById(menuItem).style.display == 'block' )
	{
		document.getElementById(menuItem).style.display = 'none';
	}
	else
	{
	
		document.getElementById('overSizoMenu').style.display	= 'none';
		document.getElementById('nieuwsMenu').style.display		= 'none';
		document.getElementById('portfolioMenu').style.display	= 'none';
		document.getElementById('contactMenu').style.display	= 'none';
		
		document.getElementById(menuItem).style.display		= 'block';
	
	}

}

function clickclear(thisfield, defaulttext) 
{
	if (thisfield.value == defaulttext) 
	{
		thisfield.value = "";
	}
}

function clickrecall(thisfield, defaulttext) 
{
	if (thisfield.value == "") 
	{
		thisfield.value = defaulttext;
	}
}