/**
*	formController
*
*
*/

function formController(form)
{
	this.form = form;
	this.data_delta = [];
	this.data_alpha = [];
	
	this.broadcaster = new EventBroadcaster();

	var tA = Form.getElements(this.form);
	var iMax = tA.length;
	
	Event.observe(this.form,'reset',function()
	{
		c.reset();
	});
	
	for(i=0;i<iMax;i++){
		var obj = tA[i];
		//if(obj.hasClassName('noparse')){
		this.data_alpha.push( [obj.id,obj.value] );
		var c = this;
		Event.observe(obj,'focus',function()
		{
			c.focus(this);
		});
		Event.observe(obj,'blur',function()
		{
			c.blur(this);
		});
		// Observe first keyup event and then stop observing it
		Event.observe(obj,'keyup',function()
		{
			c.change(this);
			Event.stopObserving(this,'keyup');
		});
		Event.observe(obj,'change',function()
		{
			c.change(this);
		});
		//}
	}
}

formController.prototype.reset = function()
{
	this.data_delta = [];
	this.broadcaster.broadcastMessage('onFormReset',this.form);
};

/**
*	focus
*
*
*/

formController.prototype.focus = function(obj){
	form_item = obj.up('.form_item');
	form_item.addClassName('active');
};

/**
*	blur
*
*
*/

formController.prototype.blur = function(obj){
	form_item = obj.up('.form_item');
	form_item.removeClassName('active');
};

/**
*	change
*
*
*/

formController.prototype.change = function(obj){
	var status = 1;
	for(var i in this.data_alpha){
		if(this.data_alpha[i][0] == obj.id){
			if(this.data_alpha[i][1] == obj.value){
				for(var j in this.data_delta){
					if(this.data_delta[j][0] == obj.id){
						this.data_delta.splice(j,1);
					}
				}
				status = 0;
			}else{
				var create = true;
				if(this.data_delta.length > 0){
					for(var j in this.data_delta){
						if(this.data_delta[j][0] == obj.id){
							this.data_delta[j][1] = obj.value;
							create = false;
						}
					}
				}
				if(create){
					this.data_delta.push( [obj.id, obj.value] );
				}
			}
		}
	}

	this.broadcaster.broadcastMessage('onFormUpdate',{
		status:status,
		elem:obj,
		length:this.getLength(),
		form:this.form
	});

};


/**
*	getLength
*
*
*/

formController.prototype.getLength = function()
{
	if(this.data_delta != undefined){
		if(this.data_delta.length > 0){
			return this.data_delta.length;
		}
	}

	return 0;
};