// Hide all the large pictures.
function hideDivs() 
{
    var numberPictures = 25;
  
    for (i=1; i<=numberPictures; i++)
    
    {
        if (document.getElementById("LargeStaff" + i) != null) {
          document.getElementById("LargeStaff" + i).style.display='none';
        }
    }
}
  
// Toggle and element on or off and hide all other pictures.
function toggleElement(idIn) 
{
    hideDivs();
    
    toggleDiv(idIn); 
}

// Toggle a specific element on or off.
function toggleDiv(idIn)
{
	if (document.getElementById(idIn).style.display == 'none')
	{
		document.getElementById(idIn).style.display = 'block';
	}
	else
	{
		document.getElementById(idIn).style.display = 'none';
	}
}

// Show a specifc video.
function showVideo(idIn)
{
    document.getElementById('girls1').style.display='none';
	document.getElementById('girls2').style.display='none';
	document.getElementById('boys1').style.display='none';
	document.getElementById('boys2').style.display='none';
	document.getElementById('dan').style.display='none';
	
	document.getElementById(idIn).style.display = 'block';
}