function edit_mode_on() {

	divs = document.getElementsByTagName('div');

	for (i = 0; i < divs.length; i++) {

		if (divs[i].className.search('edit') > -1) {

			divs[i].style.visibility = 'visible';

			divs[i].style.position = '';

		}

	}

	document.getElementById('edit_menu_on').style.visibility = "hidden";

	document.getElementById('edit_menu_on').style.position = "absolute";

	document.getElementById('edit_menu_off').style.visibility = "visible";

	document.getElementById('edit_menu_off').style.position = "static";

}



function edit_mode_off() {

	divs = document.getElementsByTagName('div');

	for (i = 0; i < divs.length; i++) {

		if (divs[i].className.search('edit') > -1) {

			divs[i].style.visibility = 'hidden';

			divs[i].style.position = 'absolute';

		}

	}

	document.getElementById('edit_menu_on').style.visibility = "visible";

	document.getElementById('edit_menu_on').style.position = "static";

	document.getElementById('edit_menu_off').style.visibility = "hidden";

	document.getElementById('edit_menu_off').style.position = "absolute";

}