function rollover(visible){
		if(visible == 'yes'){
			document.getElementById('menu_bottom_sub').style.display = "block"		
	
		} else {
			document.getElementById('menu_bottom_sub').style.display = "none"	
		}
}

function rollover_2(visible2){
		if(visible2 == 'yes'){
			document.getElementById('menu_bottom_sub_2').style.display = "block"		
	
		} else {
			document.getElementById('menu_bottom_sub_2').style.display = "none"	
		}
}