/**************************************************************

	Script	: Image Menu
	Version	: 2.2
	Authors	: Samuel Birch
	Desc	: 
	Licence	: Open Source MIT Licence

**************************************************************/

var ImageMenu = new Class({
	
	getOptions: function(){
		return {
			onOpen: false,
			onClose: Class.empty,
			openWidth: 200,
			transition: Fx.Transitions.quadOut,
			duration: 400,
			open: null,
			border: 0
		};
	},

	initialize: function(elements, options){
		this.setOptions(this.getOptions(), options);
		
		this.elements = $$(elements);
		
		this.widths = {};
		this.widths.closed = this.elements[0].getStyle('width').toInt();
		this.widths.openSelected = this.options.openWidth;
		this.widths.openOthers = Math.round(((this.widths.closed*this.elements.length) - (this.widths.openSelected+this.options.border)) / (this.elements.length-1))
		
		
		this.fx = new Fx.Elements(this.elements, {wait: false, duration: this.options.duration, transition: this.options.transition});
		
		this.elements.each(function(el,i){
			el.addEvent('mouseenter', function(e){
				new Event(e).stop();
				this.reset(i);
				
			}.bind(this));
			
			el.addEvent('mouseleave', function(e){
				new Event(e).stop();
				this.reset(this.options.open);
				
			}.bind(this));
			
			var obj = this;
			
			el.addEvent('click', function(e){

				if(obj.options.onOpen){
					new Event(e).stop();
					if(obj.options.open == i){
						obj.options.open = null;
						obj.options.onClose(this.href, i);
					}else{
						obj.options.open = i;
						obj.options.onOpen(this.href, i);
					}
					
					
				}
				
			})
			
		}.bind(this));
		
		if(this.options.open){
			if($type(this.options.open) == 'number'){
				this.reset(this.options.open);
			}else{
				this.elements.each(function(el,i){
					if(el.id == this.options.open){
						this.reset(i);
					}
				},this);
			}
		}
		
	},
	
	reset: function(num){
		if($type(num) == 'number'){
			var width = this.widths.openOthers;
			if(num+1 == this.elements.length){
				width += this.options.border;
			}
		}else{
			var width = this.widths.closed;
		}
		
		var obj = {};
		this.elements.each(function(el,i){
			var w = width;
			if(i == this.elements.length-1){
				w = width+5
			}
			obj[i] = {'width': w};
		}.bind(this));
		
		if($type(num) == 'number'){
			obj[num] = {'width': this.widths.openSelected};
		}
				
		this.fx.start(obj);
	}
	
});

ImageMenu.implement(new Options);
ImageMenu.implement(new Events);


/*****PageLoader***/

function ajaxLoader(url,id) {
  if (document.getElementById) {
    var x = (window.ActiveXObject) ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();
  }
  if (x) {
    x.onreadystatechange = function() {
      if (x.readyState == 4 && x.status == 200) {
        el = document.getElementById(id);
        el.innerHTML = x.responseText;
      }
    }
    x.open("GET", url, true);
    x.send(null);
  }
}

/*****Tooltip***/

var tooltip=function(){
	var id = 'tt';
	var top = 3;
	var left = 3;
	var maxw = 300;
	var speed = 10;
	var timer = 20;
	var endalpha = 95;
	var alpha = 0;
	var tt,t,c,b,h;
	var ie = document.all ? true : false;
	return{
		show:function(v,w){
			if(tt == null){
				tt = document.createElement('div');
				tt.setAttribute('id',id);
				t = document.createElement('div');
				t.setAttribute('id',id + 'top');
				c = document.createElement('div');
				c.setAttribute('id',id + 'cont');
				b = document.createElement('div');
				b.setAttribute('id',id + 'bot');
				tt.appendChild(t);
				tt.appendChild(c);
				tt.appendChild(b);
				document.body.appendChild(tt);
				tt.style.opacity = 0;
				tt.style.filter = 'alpha(opacity=0)';
				document.onmousemove = this.pos;
			}
			tt.style.display = 'block';
			c.innerHTML = v;
			tt.style.width = w ? w + 'px' : 'auto';
			if(!w && ie){
				t.style.display = 'none';
				b.style.display = 'none';
				tt.style.width = tt.offsetWidth;
				t.style.display = 'block';
				b.style.display = 'block';
			}
			if(tt.offsetWidth > maxw){tt.style.width = maxw + 'px'}
			h = parseInt(tt.offsetHeight) + top;
			clearInterval(tt.timer);
			tt.timer = setInterval(function(){tooltip.fade(1)},timer);
		},
		pos:function(e){
			var u = ie ? event.clientY + document.documentElement.scrollTop : e.pageY;
			var l = ie ? event.clientX + document.documentElement.scrollLeft : e.pageX;
			tt.style.top = (u - h) + 'px';
			tt.style.left = (l + left) + 'px';
		},
		fade:function(d){
			var a = alpha;
			if((a != endalpha && d == 1) || (a != 0 && d == -1)){
				var i = speed;
				if(endalpha - a < speed && d == 1){
					i = endalpha - a;
				}else if(alpha < speed && d == -1){
					i = a;
				}
				alpha = a + (i * d);
				tt.style.opacity = alpha * .01;
				tt.style.filter = 'alpha(opacity=' + alpha + ')';
			}else{
				clearInterval(tt.timer);
				if(d == -1){tt.style.display = 'none'}
			}
		},
		hide:function(){
			clearInterval(tt.timer);
			tt.timer = setInterval(function(){tooltip.fade(-1)},timer);
		}
	};
}();