var Flow = new Object();

Flow = {
	init: function(){
		//nop
	},
	
	hasTriedToSubmit: false,
	
	getCode: function(){
		//TODO
	},
	
	selectPerso: function(el,fld){
		var items = el.parentNode.getElementsByTagName("a");
		for(var i = 0; i < items.length; i++){
			items[i].className = "disabled";
		}
		el.className = "selected";
		//TODO: set value in a hidden input
		$(fld).value = el.id;
		fc.check(fld);
	}, 
	
	
	/**
	* Add or change error message on object
	*/
	addError: function(element, options, crossArg){
	
		if(Flow.hasTriedToSubmit){
			Flow.setGlobalErrorStatus(false);
		}
	
		var element = $(element);
		element.addClass("error");
		
		if(element.error == null){
			//inititializing cross
			//if cross exists, just add 1 to the error count
			if(crossArg != null && crossArg.reference != null){
			
				if(!crossArg.reference.isCrossed){
					with(crossArg){
					
						reference = $(reference);
						reference.isCrossed = 1;
						reference.cross = crossArg;
						
						//set the cross position
						if(alignment != 'left' && alignment != 'right')
							alignment = 'left';
							
						var left = reference.getLeft();
						if(alignment == 'right')
							left += reference.getSize().size.x + 20
						else
							left -= 60 
							
						//init cross picture	
						crossArg.pic = new Element('img',{
							'styles':{
								'position': 'absolute',
								'top': reference.getTop() + 'px',									
								'left': left + 'px'	
							},
							'src':'/templates/default/html/pictures/flow/flow_1_wrong.gif',
							'title': 'error'
						});
						
					}
					$(document.body).adopt(crossArg.pic);
				}
				else{
					crossArg.reference.isCrossed++;
				}
			}
			
			//Add error class on title					
			if(options.title != null)
				$(options.title).addClass("error");
			
			//Add error message
			if(options.message != null){
				var errorMsgEl = new Element('span',{'class': 'error'});
				errorMsgEl.setText(' (' + options.message + ')');
				element.adopt(errorMsgEl);
			}
			
			//add error class on input
			if(options.input != null)
				$(options.input).addClass("error");
				
				
			element.error = {
					'title': $(options.title),
					'input': $(options.input),
					'errorMsgCont': $(errorMsgEl),
					'crossRefEl':$(crossArg.reference)
				};
		}
		else{
			//change the current error message
			if($defined(element.error.errorMsgCont))
				element.error.errorMsgCont.setText(' (' + options.message + ')');
		}	
		
		return;
	},
	
	
	/**
	* Remove error notification on an element
	*/
	removeError: function(element){
		if(Flow.hasTriedToSubmit){
			var count = 0;
			for(e in fc.errs)
				count++;
			if(count == 0)
				Flow.setGlobalErrorStatus(true);
		}
		
		element = $(element);
		if(element == null || element.error == null)
			return;
		if(element.error.crossRefEl){
			element.error.crossRefEl.isCrossed--;
			if(element.error.crossRefEl.isCrossed < 1){
				element.error.crossRefEl.cross.pic.setAttribute('src','/templates/default/html/pictures/flow/flow_1_right.gif');
				if(element.error.title != null)
					element.error.title.removeClass("error");
			}
		}

		if(element.error.input != null)
			element.error.input.removeClass('error');
		if(element != null)
			element.removeClass('error');
		if(element.error.errorMsgCont != null)
			element.error.errorMsgCont.remove();
		try{
			delete element.error;
		}
		catch(e){
			element.error = null;
		}
	},
	
	
	
	/**
	* Checks
	*/
	checkForm: function()
	{
		Flow.hasTriedToSubmit = true;
		var test = false;
		if(test = fc.checkAll()){
			$('accountForm').submit();
		}
		Flow.setGlobalErrorStatus(test);
	},
	
	checkPerso: function(el){
		var id = el.id;
		return ($(id).value.trim().length > 0);
	},
	
	
	dispStatusPerso: function(el, status, msg, alignment, title, ref) {
		var label = $(el.id + '-label');
		if(!status) {
			$(el).error = Flow.addError(label,{
                                           'title': title, 
                                           'input': $(el), 
                                           'message': msg
                                          },
                                          {
                                              'reference': (ref!=null)?$(ref):$(el),
		        						'alignment': alignment
                                          }

						)
		} else {
			Flow.removeError(label);
		}
	},
	
	dispStatus: function(el, status, msg, alignment, title, ref){
		if(!status) {
			$(el).error = Flow.addError($(el).getParent().getFirst(),{
                                           'title': title, 
                                           'input': $(el), 
                                           'message': msg
                                          },
                                          {
                                            'reference': (ref!=null)?$(ref):$(el),
		        							'alignment': alignment
                                          }

						)
		} else {
			Flow.removeError($(el).getParent().getFirst());
		}
	},
	
	checkAccountName: function(el, empty)
	{
		if(empty && el.value == "") return true;
		var pars = 'mode=ajax&name='+ el.value;
		var u = new Ajax("/skaaz/check_account.jsp", {data: pars, async: false}).request();
		return (u.transport.responseText != 0);
	},
	
	checkEmail: function(el, empty)
	{
		if(empty && el.value == "") return true;
		var pars = 'mode=ajax&name='+ el.value;
		var u = new Ajax("/skaaz/check_email.jsp", {data: pars, async: false}).request();
		return (u.transport.responseText != 0);
	},
	
	setGlobalErrorStatus: function(status){
		if(status){
			if($('submit-container').hasClass('errors'))
				$('submit-container').removeClass('errors');
			if(!$('submit-container').hasClass('noerrors'))
				$('submit-container').addClass('noerrors');
		}
		else{
			if(!$('submit-container').hasClass('errors'))
				$('submit-container').addClass('errors');
			if($('submit-container').hasClass('noerrors'))
				$('submit-container').removeClass('noerrors');
		}
			
	},
	
	changeLanguage: function(choice, languageID) {
		var items = choice.parentNode.getElementsByTagName("a");
		for(i = 0; i < items.length; i++){
			items[i].className = 'off';
		}
	
		$('account.languageID').value = languageID;
		choice.className = 'on';
	}
}