function closeSliders(){
		for(i=1;i<=11;i++){
			if(i==1)
				value = 'first closed';
			else if(i==11)
				value = 'last closed';
			else
				value = 'closed';			
			document.getElementById("menu-"+i).className = value; 
			document.getElementById("menu-"+i+"-text").className = value;
		}
	}
	function openSlider(z) {
		closeSliders();
		if(z=='menu-1')
			value = 'first open';
		else if(z=='menu-11')
			value = 'last open';
		else
			value = 'open';
		document.getElementById(z).className = value; 
		document.getElementById(z + "-text").className = value;
	}