pf.js = {};
pf.screen = {};
pf.lib = {};
pf.ui = {};
pf.Y = {};

// shortcut for getElementById
pf.y = function (item1, item2, item3, item4) {
	
	this.get = function (item1) {
		return document.getElementById(item1);
	};
	this.hasClass = function (item1, item2) {
		return YAHOO.util.Dom.hasClass(item1, item2);
	};
	this.addClass = function (item1, item2) {
		return YAHOO.util.Dom.addClass(item1, item2);
	};
	this.removeClass = function (item1, item2) {
		return YAHOO.util.Dom.removeClass(item1, item2);
	};
	this.getElementsByClassName = function (item1, item2, item3) {
		return YAHOO.util.Dom.getElementsByClassName(item1, item2, item3);
	};
	this.getClass = this.getElementsByClassName;
	this.getChildren = function (item1) {
		return YAHOO.util.Dom.getChildren(item1);
	};

	this.addListener = function (item1, item2, item3, item4) {
		return YAHOO.util.Event.addListener(item1, item2, item3, item4);
	};
	this.purgeElement = function (item1) {
		return YAHOO.util.Event.purgeElement(item1);
	};
	this.DOMReady = function (item1) {
		return YAHOO.util.Event.onDOMReady(item1);
	};
 	this.preventDefault = function (e) {
 		return YAHOO.util.Event.preventDefault(e);
 	};

	this.ajax = function (item1, item2, item3, item4) {
		return YAHOO.util.Connect.asyncRequest(item1, item2, item3, item4);
	}; 

	this.isUndefined = function (item1) {
		return YAHOO.lang.isUndefined(item1);
	};
	this.isArray = function (a) {
		return YAHOO.lang.isArray(a);
	};
	this.pad = function(number) {
	    if(number<10)
	       number=0+""+number;
	    return number;
 	};
 	this.max = function(a) {
	 	var max = a[0];
		var len = a.length;
		for (var i = 1; i < len; i++) {
			if (a[i] > max) {
				max = a[i];
			}
		}
		return max;
 	};
 	this.getTarget = function(e) {
		return YAHOO.util.Event.getTarget(e);
 	};
 	this.log = function(str) {
 		return YAHOO.log(str);
 	}
}

Y = new pf.y;


pf.lib.cookie = {
	read: function (name) {
		var nameEQ = name + "=";
		var ca = document.cookie.split(';');
		for(var i=0;i < ca.length;i++) {
			var c = ca[i];
			while (c.charAt(0)==' ') c = c.substring(1,c.length);
			if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
		}
		return null;
	}, 
	create: function(name,value,days) {
		if (days) {
			var date = new Date();
			date.setTime(date.getTime()+(days*24*60*60*1000));
			var expires = "; expires="+date.toGMTString();
		}
		else var expires = "";
		document.cookie = name+"="+value+expires+"; path=/";
	},
	erase: function(name) {
		pf.lib.cookie.create(name,"",-1);
	}
}