defaultNav = 1
whichNavNew = 0
whichNavOld = defaultNav

function closeOvrnavs(){

	eval('navigation' + whichNavNew + 'NorDiv').show();
	eval('navigation' + whichNavNew + 'OvrDiv').hide();

	navigationCloserDiv.hide()

	whichNavOld = defaultNav;
	eval('navigation' + whichNavOld + 'NorDiv').show();
}

function navOvr1(){

	navigation1OvrDiv.show()
	navigation2OvrDiv.hide()
	navigation3OvrDiv.hide()
	navigation4OvrDiv.hide()
	navigation5OvrDiv.hide()

	whichNavNew = 1
	navigationCloserDiv.show()
}

function navOvr2(){
	
	navigation1OvrDiv.hide()	
	navigation2OvrDiv.show()
	navigation3OvrDiv.hide()
	navigation4OvrDiv.hide()
	navigation5OvrDiv.hide()

	whichNavNew = 2
	navigationCloserDiv.show()
}

function navOvr3(){
	
	navigation1OvrDiv.hide()	
	navigation2OvrDiv.hide()
	navigation3OvrDiv.show()
	navigation4OvrDiv.hide()
	navigation5OvrDiv.hide()

	whichNavNew = 3
	navigationCloserDiv.show()
}

function navOvr4(){
	
	navigation1OvrDiv.hide()	
	navigation2OvrDiv.hide()
	navigation3OvrDiv.hide()
	navigation4OvrDiv.show()
	navigation5OvrDiv.hide()

	whichNavNew = 4
	navigationCloserDiv.show()
}

function navOvr5(){
	
	navigation1OvrDiv.hide()	
	navigation2OvrDiv.hide()
	navigation3OvrDiv.hide()
	navigation4OvrDiv.hide()
	navigation5OvrDiv.show()

	whichNavNew = 5
	navigationCloserDiv.show()
}