var last = ""
var clicked = ""
var old = ""
function swap_on(elm)
	{
		document.getElementById(elm).style.backgroundColor='5073A0'
		document.getElementById(elm).style.color='ffffff'
		
		if (last != elm && last != "")
			{
				document.getElementById(last).style.backgroundColor='ffffff'
				document.getElementById(last).style.color='5073A0'
			}
		
		if (clicked != "")
			{
				document.getElementById(clicked).style.backgroundColor='5073A0'
				document.getElementById(clicked).style.color='ffffff'
			}
			
		last = elm
		
	}
	
function swap_off(elm)
	{
		if (clicked != elm)
			{
				document.getElementById(last).style.backgroundColor='ffffff'
				document.getElementById(last).style.color='5073A0'
			}
		
	}

function laatstaan(elm)
	{
		if (clicked != "")
			{
				document.getElementById(clicked).style.backgroundColor='ffffff'
				document.getElementById(clicked).style.color='5073A0'
			}
		
		clicked = elm
	}
	
function change(elm)
	{
		old = top.topFrame.clicked
		if (top.topFrame.clicked == "")
			{
				top.topFrame.document.getElementById(elm).style.backgroundColor='5073A0'
				top.topFrame.document.getElementById(elm).style.color='ffffff'
				
				top.topFrame.clicked = elm
			}
		else
			{
				top.topFrame.document.getElementById(elm).style.backgroundColor='5073A0'
				top.topFrame.document.getElementById(elm).style.color='ffffff'
				
				if (top.topFrame.clicked != elm)
					{
						top.topFrame.document.getElementById(old).style.backgroundColor='ffffff'
						top.topFrame.document.getElementById(old).style.color='5073A0'
					}
				
				top.topFrame.clicked = elm
			}
		
		if (elm == "bijvoorbeeld" || elm == "meer" || elm =="wanneer")
			{}
		else
			{
				top.topFrame.resetit(event)
			}
		
	}