//+ Jonas Raoni Soares Silva

//@ http://jsfromhell.com/forms/masked-input [v1.0]



//========================================================

// REQUIRES http://www.jsfromhell.com/geral/event-listener

//========================================================



MaskInput = function(f, m){

	function mask(e){

		var patterns = {"1": /[A-Z]/i, "2": /[0-9]/, "4": /[\xC0-\xFF]/i, "8": /./ },

			rules = { "a": 3, "A": 7, "9": 2, "C":5, "c": 1, "*": 8};

		function accept(c, rule){

			for(var i = 1, r = rules[rule] || 0; i <= r; i<<=1)

				if(r & i && patterns[i].test(c))

					break;

				return i <= r || c == rule;

		}

		var k, mC, r, c = String.fromCharCode(k = e.key), l = f.value.length;

		(!k || k == 8 ? 1 : (r = /^(.)\^(.*)$/.exec(m)) && (r[0] = r[2].indexOf(c) + 1) + 1 ?

			r[1] == "O" ? r[0] : r[1] == "E" ? !r[0] : accept(c, r[1]) || r[0]

			: (l = (f.value += m.substr(l, (r = /[A|9|C|\*]/i.exec(m.substr(l))) ?

			r.index : l)).length) < m.length && accept(c, m.charAt(l))) || e.preventDefault();

	}

	for(var i in !/^(.)\^(.*)$/.test(m) && (f.maxLength = m.length), {keypress: 0, keyup: 1})

		addEvent(f, i, mask);

};