function showHide(id){
    current=(document.getElementById(id).style.display == 'none') ? 'block' : 'none';
    document.getElementById(id).style.display = current;
	}

function activePage(id){
	document.getElementById(id).id = 'current_page'
	}
function activePagePrime(id){
	document.getElementById(id).id = 'current_page_prime'
	}	
function activePageThird(id){
	document.getElementById(id).id = 'current_page_third'
	}