//Horizontal drop down navigation menu
//window.onload=dropdownmenu;
var num_menu = 5;

function dropdownmenu(id) {
	var currentMenu = document.getElementById(id);
	for (var i = 1; i<=num_menu; i++) {
		if (document.getElementById('menu'+i))
		 {document.getElementById('menu'+i).style.display='none';}
	}
	if (currentMenu) {currentMenu.style.display='block';}
}

function clearmenu(id)
{
	var currentMenu = document.getElementById(id);
	currentMenu.style.display='none';
}

function clearmenu()
{
	for (var i = 1; i<=num_menu; i++) {
		if (document.getElementById('menu'+i))
		 {document.getElementById('menu'+i).style.display='none';}
	}
}