var transparentImage = "images/transparent.gif";
function fixTrans(){
	if (typeof document.body.style.maxHeight == 'undefined') {
	var imgs = document.getElementsByTagName("img");
	for (i = 0; i < imgs.length; i++){	
		if (imgs[i].src.indexOf(transparentImage) != -1){
			return;
		}
		if (imgs[i].src.indexOf(".png") != -1){
				var src = imgs[i].src;
				imgs[i].src = transparentImage;
				imgs[i].runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "',sizingMethod='scale')";
			}
		}
	}
}
if (document.all && !window.opera) attachEvent("onload", fixTrans);
function ieHover(){
	var nav = document.getElementById("centers-of-excellence-box");
	if (nav){
		var nodes = nav.getElementsByTagName("li");
		for (var i = 0; i < nodes.length; i++){
			nodes[i].onmouseover = function (){
				if (this.className.indexOf("hover") == -1){
					this.className += " hover";
				}
			}
			nodes[i].onmouseout = function (){
				this.className = this.className.replace(" hover", "");
			}
		}
	}
}
if (window.attachEvent && !window.opera) window.attachEvent("onload", ieHover);

function _fontResize(){
	var _element = document.body;
	_default = 120;
	_curent = _default;
	_max = 200;
	_min = 50;
	_element.style.fontSize = _default + '%';
	var _step = 10;
	var _aaa = document.getElementById('aaa');
	var _btn = _aaa.getElementsByTagName('a');
	for (var j = 0; j < _btn.length; j++){
		_btn[j].onclick = function(){
			if(this.className == 'zoom_in'){
				_curent += _step;
				if(_curent > _max)
				_curent = _max;
				_element.style.fontSize = _curent + '%';
			}
			else if(this.className == 'zoom_out'){
				_curent -= _step;
				if(_curent < _min)
				_curent = _min;
				_element.style.fontSize = _curent + '%';
			}
			else{
				_element.style.fontSize = _default + '%';
				_curent = _default;
			}
		}
	}
}
if (window.addEventListener) window.addEventListener("load", _fontResize, false);
else if (window.attachEvent) window.attachEvent("onload", _fontResize);


$(document).ready(function(){
	var stay_time = 5000; //in ms
	var change_speed = 500; //in ms
	var _hold = $('#gallery');
	if(_hold){
		var _list = _hold.find('div.inner > ul > li');
		var _btn = _hold.find('#gallery-nav a');
		var _a = _btn.index(_btn.filter('.active:eq(0)'));
		if(_a == -1) _a = 0;
		var _f = true;
		var _t;
		
		_list.removeClass('active').css('opacity', 0).eq(_a).addClass('active').css('opacity', 1);
		_btn.removeClass('active').eq(_a).addClass('active');
		_btn.click(function(){
			changeEl(_btn.index(this));
			return false;
		});
		_hold.mouseenter(function(){
			if(_t) clearTimeout(_t);
			_f = false;
		}).mouseleave(function(){
			_f = true;
			if(_t) clearTimeout(_t);
			_t = setTimeout(function(){
				if(_a < _list.length - 1) changeEl(_a + 1);
				else changeEl(0);
			}, stay_time);
		});
		
		function changeEl(_ind){
			if(_t) clearTimeout(_t);
			if(_ind != _a){
				_btn.eq(_a).removeClass('active');
				_btn.eq(_ind).addClass('active');
				_list.eq(_a).removeClass('active').animate({opacity: 0}, {queue:false, duration:change_speed});
				_list.eq(_ind).addClass('active').animate({opacity: 1}, {queue:false, duration:change_speed});
				_a = _ind;
			}
			if(_f){
				_t = setTimeout(function(){
					if(_a < _list.length - 1) changeEl(_a + 1);
					else changeEl(0);
				}, stay_time);
			}
		}
		
		if(_f){
			_t = setTimeout(function(){
				if(_a < _list.length - 1) changeEl(_a + 1);
				else changeEl(0);
			}, stay_time);
		}
	}
});