function bg_on(n,cl){
	if(document.getElementById(n)) 
		if(cl==1) //topmenu
			document.getElementById(n).style.backgroundColor = "#FBEAC2" 
		else if(cl==2) //rightmenu
			document.getElementById(n).style.backgroundColor = "#E5F5FF" 
		else   	  //leftmenu
			document.getElementById(n).style.backgroundColor = "#F3D17F";
}

function bg_off(n,cl){
	if(document.getElementById(n)) 
		if(cl==1) //topmenu
			document.getElementById(n).style.backgroundColor = "" 
		else if(cl==2) //rightmenu
			document.getElementById(n).style.backgroundColor = "" 
		else   	  //leftmenu
			document.getElementById(n).style.backgroundColor = "#E8A300";
}