// this == dom element
onFadeEnd = function () {
	$(this).remove() ;
} ;

_enqueueMsg = function(msg, cls, remainVisibleTime) {
	var m = $('<span>' + msg + '</span>').addClass("f-msg-cls").addClass(cls).appendTo("#t-msg-wrapper") ;
	if (remainVisibleTime)
		m.parent().animate({'opacity':.95}, remainVisibleTime).fadeOut(2000, onFadeEnd) ;
	return m ;
	
}

enqueueMsg = function(msg) {
	var cls = "f-msg" ;
	var remainVisibleTime = 2000 ;
	_enqueueMsg(msg, cls, remainVisibleTime) ;	
}

enqueueErrorMsg = function(msg) {
	var cls = "f-msg-e" ;
	var remainVisibleTime = 4000 ;
	_enqueueMsg(msg, cls, remainVisibleTime) ;	
}

setCookie = function(name, value) {
	var cookieExpire = new Date();
	cookieExpire.setFullYear(2100, 0, 1);
	$.cookie(name, value, {
		'expires' :cookieExpire,
		'path': '/'
	});
}

/* utility function to remember form field value into cookie */
rememberFormField = function(form_id, field_id, cookie_name) {
	/* value gets fetched from cookie if possible */	
	$(document).ready(function(){
		var cookie_val = $.cookie(cookie_name); 
		if (cookie_val) {
			$('#' + form_id + ' #' + field_id)[0].value = cookie_val; 
		}
	})

	/* value gets saved on submit */
	$(document).ready(function(){
		$('#' + form_id + ' input[type=submit]').click(function() {
			var val = $('#' + form_id + ' #' + field_id)[0].value;
			if (val) {
				setCookie(cookie_name, val);
			}
	    });
	})	
}