// JavaScript
	var expAttr = { width: { to: 250 }, height: { to: 72 } };
	var expAttr2 = { height: { to: 53 } };
	var expAttr3 = { width: { to: 80 }, height: { to: 62 } };
	var expAttr4 = { opacity: { to: .0 } };
	//var expAttr5 = { fontSize: { from: 1.25, by: .25, unit: 'em' } };
	var conAttr = { width: { to: 220 }, height: { to: 62 }  };
	var conAttr2 = { height: { to: 43 } };
	var conAttr3 = { width: { to: 67 }, height: { to: 52 } };
	var conAttr4 = { opacity: { to: .5 } };
	//var conAttr5 = { fontSize: { from: 1.5, by: -.25, unit: 'em' } };
	
	var timing = 0.3;


//define nav element ids
	var navIDs = new Array()
	navIDs[0] = "nav-free-trial";
	navIDs[1] = "nav-family-tree";
	navIDs[2] = "nav-searching-the-census";
	navIDs[3] = "nav-searching-bmd";
	navIDs[4] = "nav-ancestry-community";
	navIDs[5] = "nav-tonys-tutorials";

	expandNav = function(id){
		var expAnim = new YAHOO.util.Anim(id, expAttr, timing, YAHOO.util.Easing.easeOut); 
		expAnim.animate();
		
		var expAnim2 = new YAHOO.util.Anim(id + "-top", expAttr2, timing, YAHOO.util.Easing.easeOut); 
		expAnim2.animate();
		
		var expAnim3 = new YAHOO.util.Anim(id + "-img", expAttr3, timing, YAHOO.util.Easing.easeOut); 
		expAnim3.animate();
		
		var expAnim4 = new YAHOO.util.Anim(id + "-wash", expAttr4, timing, YAHOO.util.Easing.easeOut); 
		expAnim4.animate();
		
		//var expAnim5 = new YAHOO.util.Anim(id + "-title", expAttr5, timing, YAHOO.util.Easing.easeOut); 
		//expAnim5.animate();
	}

	contractNav = function(id){
		if(id != navOn){
			var conAnim = new YAHOO.util.Anim(id, conAttr, timing, YAHOO.util.Easing.easeOut); 
			conAnim.animate();
			
			var conAnim2 = new YAHOO.util.Anim(id + "-top", conAttr2, timing, YAHOO.util.Easing.easeOut); 
			conAnim2.animate();
		
			var conAnim3 = new YAHOO.util.Anim(id + "-img", conAttr3, timing, YAHOO.util.Easing.easeOut); 
			conAnim3.animate();
			
			var conAnim4 = new YAHOO.util.Anim(id + "-wash", conAttr4, timing, YAHOO.util.Easing.easeOut); 
			conAnim4.animate();
			
			//var conAnim5 = new YAHOO.util.Anim(id + "-title", conAttr5, timing, YAHOO.util.Easing.easeOut); 
			//conAnim5.animate();
		}
	}


	loadNav = function(){

		//onload set up menu
		for(i=0; i<navIDs.length; i++){
			if(window.navOn && document.getElementById(navOn)){
				if(navIDs[i] != navOn){
					//fade out all buttons - except current page
					contractNav(navIDs[i]);
					//fill wash layer with colour
					document.getElementById(navIDs[i] + "-wash").style.backgroundColor = "#FFFFFF";
				}
			}
		}
	}