/*
** ie event and listener
*/
my.ieUserData = function (fileName) {
	this.init(fileName);
};
my.ieUserData.prototype = {
	_keys: 'userdatakeys',
	ready: true,
	fileName: null,
	o: null,
	expires: 365,
	keys: [],
	length: 0,
	init: function (fileName) {
		try {
			this.fileName = fileName;
			this.o = document.createElement('span');
			this.o.id = "historyUserData";
			this.o.style.display = "none";
			this.o.addBehavior("#default#userData");
			document.body.appendChild(this.o);
		} catch (e) {
			this.ready = false;
		}
		if (this.ready) {
			try {
				this.o.load(this.fileName);
				this.keys = this.o.getAttribute(this._keys).split(',');
				this.length = this.keys.length;
			} catch (e) {}
		}
	},
	setItem: function (key, value, expires) {
		if (this.ready) {
			this.keys.push(key);
			this.length = this.keys.length;
			this.o.setAttribute(this._keys, this.keys.join(','));  
			this.o.setAttribute(key, value);    
			var d = new Date(),
				e = expires || this.expires;
			d.setDate(d.getDate() + e);
			this.o.expires = d.toUTCString();       
			this.o.save(this.fileName);
		}
	},
	getItem: function (key) {
		if (this.ready) {
			try {
				this.o.load(this.fileName);
				return this.o.getAttribute(key);
			} catch (e) {
				return null;
			}
		}
	},
	removeItem: function(key){
		if (this.ready) {
			try {
				for(var i =0, ilen=this.keys.length, n=0; i