function nextpage ( targetId ){

	var page1 = document.getElementById( 'page1' );
	var page2 = document.getElementById( 'page2' );
	var page3 = document.getElementById( 'page3' );
	var page4 = document.getElementById( 'page4' );
	var page5 = document.getElementById( 'page5' );
	var page6 = document.getElementById( 'page6' );

	page1.style.display = "none";
	page2.style.display = "none";
	page3.style.display = "none";
	page4.style.display = "none";
	page5.style.display = "none";
	page6.style.display = "none";

	if (document.getElementById){
		target = document.getElementById( targetId );
		target.style.display = "";

	}
}