(function($){
    var pasteEventName = ($.browser.msie ? 'paste' : 'input') + ".mask";
    var iPhone = (window.orientation != undefined);
    $.mask = {
        definitions: {
            '9': "[0-9]",
            'a': "[A-Za-z]",
            'A': "[A-Z]",
            '*': "[A-Za-z0-9]"
        }
    };
	$.extend({
		mapear:function(){
			$.llamada("MAP",arguments);
			return false;
		},
		ejecutar:function(){
			$.llamada("DO",arguments);
		},
		llamada:function(){
			var cadena;
			var valido=true;
			if(arguments[0]=="MAP") {
				cadena="xajax_mapMover('"+arguments[1][0]+"'";
			}
			if(arguments[0]=="DO") {
				cadena="xajax_doEjecutar('"+arguments[1][0]+"'";
			}
			var totElem=arguments[1].length;
			for(i=1;i<totElem;i++) {
				if(arguments[1][i].toString().substr(0,5)=="form:"){
					formul=arguments[1][i].substr(5);
					$.validar(formul);
					validForm=$("#"+formul).attr("valido");
					if(validForm=="false"){
						valido=false;
					}
					cadena+=",xajax.getFormValues('"+arguments[1][i].substr(5)+"')";
				}else {
					cadena+=",'"+arguments[1][i]+"'";
				}
			}
			cadena+=")";
			if(valido==true) {
				eval(cadena);
			}
		},
        validar: function(nomb){
            return $.validacion($("#" + nomb));
        },
        validacion: function(el){
            var lst = $(el).find("input");
            var tot = lst.size();
            var i = 0;
			var ele;
			var mascara;
			$(el).attr("valido","true");
            for (; i < tot; ++i) {
				ele=lst.eq(i);
				switch(ele.attr("format")){
					case "dni":{destino = "^([0-9]{8})-[a-zA-Z]$";break;}
					case "fecha":{destino = "^([0-9]{2})/([0-9]{2})/([0-9]{4})$";break;}
					case "cp": {destino="^([0-9]{5})$";break;}
					case "telefono": {destino="^['('][0-9]{3}[')'] ([0-9]{3}) ([0-9]{3})$";break;}
					case "email": {destino="^([a-zA-Z0-9_.-]{2,50})['@']([a-zA-Z0-9_.-]{2,50})$";break;}
					case "login": {destino="^([a-zA-Z0-9_]{4,50})$";break;}
					default:{destino="";break;}
				}
				var req=ele.attr("req");
				var valor=ele.val();
				if (req == "true" && valor.length == 0) {
					ele.addClass("campoError");
					$(el).attr("valido", "false");
				}
				else {
					if (destino.length > 0) {
						var expreg = new RegExp(destino);
						if (expreg.test(valor)) {
							ele.removeClass("campoError");
						}
						else {
							ele.addClass("campoError");
							$(el).attr("valido", "false");
						}
					}
					else {
						ele.removeClass("campoError");
					}
				}
            }
        },
        formatear: function(nomb){
            return $.inicial($("#" + nomb));
        },
        inicial: function(el){
            var lst = $(el).find("input");
            var tot = lst.size();
            var i = 0;
			var ele;
            for (; i < tot; ++i) {
				ele=lst.eq(i);
				switch(ele.attr("format")){
					case "dni":{ele.mask("99999999-a");break;}
					case "fecha":{ele.mask("99/99/9999");break;}
					case "cp":{ele.mask("99999");break;}
					case "telefono":{ele.mask("(999) 999 999");break;}
				}
            }
        }
	});
    $.fn.extend({
        caret: function(begin, end){
            if (this.length == 0) 
                return;
            if (typeof begin == 'number') {
                end = (typeof end == 'number') ? end : begin;
                return this.each(function(){
                    if (this.setSelectionRange) {
                        this.focus();
                        this.setSelectionRange(begin, end);
                    }
                    else 
                        if (this.createTextRange) {
                            var range = this.createTextRange();
                            range.collapse(true);
                            range.moveEnd('character', end);
                            range.moveStart('character', begin);
                            range.select();
                        }
                });
            }
            else {
                if (this[0].setSelectionRange) {
                    begin = this[0].selectionStart;
                    end = this[0].selectionEnd;
                }
                else 
                    if (document.selection && document.selection.createRange) {
                        var range = document.selection.createRange();
                        begin = 0 - range.duplicate().moveStart('character', -100000);
                        end = begin + range.text.length;
                    }
                return {
                    begin: begin,
                    end: end
                };
            }
        },
        unmask: function(){
            return this.trigger("unmask");
        },
        mask: function(mask, settings){
            if (!mask && this.length > 0) {
                var input = $(this[0]);
                var tests = input.data("tests");
                return $.map(input.data("buffer"), function(c, i){
                    return tests[i] ? c : null;
                }).join('');
            }
            settings = $.extend({
                placeholder: "_",
                completed: null
            }, settings);
            
            var defs = $.mask.definitions;
            var tests = [];
            var partialPosition = mask.length;
            var firstNonMaskPos = null;
            var len = mask.length;
            
            $.each(mask.split(""), function(i, c){
                if (c == '?') {
                    len--;
                    partialPosition = i;
                }
                else 
                    if (defs[c]) {
                        tests.push(new RegExp(defs[c]));
                        if (firstNonMaskPos == null) 
                            firstNonMaskPos = tests.length - 1;
                    }
                    else {
                        tests.push(null);
                    }
            });
            
            return this.each(function(){
                var input = $(this);
                var buffer = $.map(mask.split(""), function(c, i){
                    if (c != '?') 
                        return defs[c] ? settings.placeholder : c
                });
                var ignore = false;
                var focusText = input.val();
                
                input.data("buffer", buffer).data("tests", tests);
                
                function seekNext(pos){
                    while (++pos <= len && !tests[pos]) 
                        ;
                    return pos;
                };
                
                function shiftL(pos){
                    while (!tests[pos] && --pos >= 0) 
                        ;
                    for (var i = pos; i < len; i++) {
                        if (tests[i]) {
                            buffer[i] = settings.placeholder;
                            var j = seekNext(i);
                            if (j < len && tests[i].test(buffer[j])) {
                                buffer[i] = buffer[j];
                            }
                            else 
                                break;
                        }
                    }
                    writeBuffer();
                    input.caret(Math.max(firstNonMaskPos, pos));
                };
                
                function shiftR(pos){
                    for (var i = pos, c = settings.placeholder; i < len; i++) {
                        if (tests[i]) {
                            var j = seekNext(i);
                            var t = buffer[i];
                            buffer[i] = c;
                            if (j < len && tests[j].test(t)) 
                                c = t;
                            else 
                                break;
                        }
                    }
                };
                function keydownEvent(e){
                    var pos = $(this).caret();
                    var k = e.keyCode;
                    ignore = (k < 16 || (k > 16 && k < 32) || (k > 32 && k < 41));
                    if ((pos.begin - pos.end) != 0 && (!ignore || k == 8 || k == 46)) 
                        clearBuffer(pos.begin, pos.end);
                    if (k == 8 || k == 46 || (iPhone && k == 127)) {
                        shiftL(pos.begin + (k == 46 ? 0 : -1));
                        return false;
                    }
                    else 
                        if (k == 27) {
                            input.val(focusText);
                            input.caret(0, checkVal());
                            return false;
                        }
                };
                function keypressEvent(e){
                    if (ignore) {
                        ignore = false;
                        return (e.keyCode == 8) ? false : null;
                    }
                    e = e || window.event;
                    var k = e.charCode || e.keyCode || e.which;
                    var pos = $(this).caret();
                    
                    if (e.ctrlKey || e.altKey || e.metaKey) {//Ignore
                        return true;
                    }
                    else 
                        if ((k >= 32 && k <= 125) || k > 186) {//typeable characters
                            var p = seekNext(pos.begin - 1);
                            if (p < len) {
                                var c = String.fromCharCode(k);
                                if (tests[p].test(c)) {
                                    shiftR(p);
                                    buffer[p] = c;
                                    writeBuffer();
                                    var next = seekNext(p);
                                    $(this).caret(next);
                                    if (settings.completed && next == len) 
                                        settings.completed.call(input);
                                }
                            }
                        }
                    return false;
                };
                function clearBuffer(start, end){
                    for (var i = start; i < end && i < len; i++) {
                        if (tests[i]) 
                            buffer[i] = settings.placeholder;
                    }
                };
                function writeBuffer(){
                    return input.val(buffer.join('')).val();
                };
                function checkVal(allow){
                    var test = input.val();
                    var lastMatch = -1;
                    for (var i = 0, pos = 0; i < len; i++) {
                        if (tests[i]) {
                            buffer[i] = settings.placeholder;
                            while (pos++ < test.length) {
                                var c = test.charAt(pos - 1);
                                if (tests[i].test(c)) {
                                    buffer[i] = c;
                                    lastMatch = i;
                                    break;
                                }
                            }
                            if (pos > test.length) 
                                break;
                        }
                        else 
                            if (buffer[i] == test[pos] && i != partialPosition) {
                                pos++;
                                lastMatch = i;
                            }
                    }
                    if (!allow && lastMatch + 1 < partialPosition) {
                        input.val("");
                        clearBuffer(0, len);
                    }
                    else 
                        if (allow || lastMatch + 1 >= partialPosition) {
                            writeBuffer();
                            if (!allow) 
                                input.val(input.val().substring(0, lastMatch + 1));
                        }
                    return (partialPosition ? i : firstNonMaskPos);
                };
                if (!input.attr("readonly")) 
                    input.one("unmask", function(){
                        input.unbind(".mask").removeData("buffer").removeData("tests");
                    }).bind("focus.mask", function(){
                        focusText = input.val();
                        var pos = checkVal();
                        writeBuffer();
                        setTimeout(function(){
                            if (pos == mask.length) 
                                input.caret(0, pos);
                            else 
                                input.caret(pos);
                        }, 0);
                    }).bind("blur.mask", function(){
                        checkVal();
                        if (input.val() != focusText) 
                            input.change();
                    }).bind("keydown.mask", keydownEvent).bind("keypress.mask", keypressEvent).bind(pasteEventName, function(){
                        setTimeout(function(){
                            input.caret(checkVal(true));
                        }, 0);
                    });
                
                checkVal();
            });
        }
    });
})(jQuery);