// JavaScript Document

var show = true;
var showInterval = new Number();
var rollLimit = new Number();
var subHeight = new Number();

function showHide(objID, show, delimiter) {
	
	rollLimit = delimiter;
	
	
	clearInterval(showInterval);
	
	if (show) {
		
 	
		showInterval = setInterval(showSubnav, 10);		

		
	
		}else {

		showInterval = setInterval(hideSubnav, 10);

		}
	 
	
	}


function showSubnav() {
	
	if (subHeight >= rollLimit){
		
		document.getElementById('roller1').style.height = rollLimit + 'px';
		clearInterval(showInterval);
		
		
	}else{
		
		subHeight+= 2;
		document.getElementById('roller1').style.height = subHeight + 'px';
		ddMInterval = setTimeout(addMore, 1);
		
	}
			
	
	}

	
function hideSubnav() {
	
		
		if (subHeight <= 5 ){
			subHeight = 0;
			document.getElementById('roller1').style.height = subHeight +'px';
			clearInterval(showInterval);
		
			
		}else{
			
			subHeight-=5;
			
			document.getElementById('roller1').style.height = subHeight + 'px';
			ubstractMInterval = setTimeout(substractMore, 1);
		}
			

	
	
	}
	
	
	 
var addMInterval;

function addMore(){
	
	subHeight++;
	document.getElementById('roller1').style.height = subHeight + 'px';

	
	}

var substractMInterval;

function substractMore(){
	subHeight--;
	document.getElementById('roller1').style.height = subHeight + 'px';

	
	}