//jQuery Form Validator v. 1.1
//Author: Daniele Di Bernardo
//http://www.marzapower.com/  

var ValidatorClass = function() {};
ValidatorClass.prototype = {
    init: function (settings) {
        var mySettings = settings;

        if (settings['requiredFieldMsg'] == undefined)  mySettings['requiredFieldMsg']   = 'Red fields are required';
        if (settings['emailFieldMsg'] == undefined)     mySettings['emailFieldMsg']      = 'Email Address must be a valid email address';
        if (settings['numericFieldMsg'] == undefined)   mySettings['numericFieldMsg']    = 'Green fields must contain numbers';
        if (settings['integerFieldMsg'] == undefined)   mySettings['integerFieldMsg']    = 'Blue fields must contain integer values';
        if (settings['bindEvent'] == undefined)         mySettings['bindEvent']          = 'click';
        if (settings['allowNullNumbers'] == undefined 
            || settings['allowNullNumbers'] != true)    mySettings['allowNullNumbers']   = false;
        
        if (settings['errorColors'] == undefined)
            mySettings['errorColors'] = {
                isRequired: '#FDD',
                isEmail:    '#FFA',
                isNumeric:  '#DFD',
                isInteger:  '#CCE',
                hasRegex:   '#CCC'
            };
        
        this.settings = mySettings;
        this.form = $(this.settings["form"]);
		
        if(this.form.length != 0)
        	this.setElementsBinding();
    },
    
    reset: function() {
        var _this = this;
        
        if(this.settings) {
	        $(this.settings['bindElement']).each( function(index, element) {
	            $(element).unbind(_this.settings['bindEvent']);
	        });
	        this.settings = null;
        }
    },
    
    setElementsBinding : function() {
        var _this = this;
        
        if (this.isArray(this.settings['bindElement'])) {
            $.each(this.settings['bindElement'], function(i, el) {
                _this.bindElement(_this.settings['bindElement'][i], _this.settings['callback'][i]);
            });
        } else {
            this.bindElement(this.settings['bindElement'], this.settings['callback']);
        }
    },

    bindElement: function (element, callback) {
        var _this = this;

        $(element).bind(this.settings['bindEvent'], function() {
            error = _this.validate();

            if (_this.isEmpty(error) || error == "" || error == null) {
				//alert(error);
                callback();
            } else {
                //alert(error);
				var variable = document.getElementById("errormessage");
                $(variable).css('display', 'block');
				scroll(0,0);
				return false;
            }
        });

    },
    
    validate: function () {
        error = '';
        validationTypes = new Array("isRequired", "isEmail", "isNumeric", "isInteger", "hasRegex");
        
        for (var n = 0; n < validationTypes.length; ++n) {    
            var x = this.settings[validationTypes[n]];
            var alreadyAlerted = false;
            
            if (x != null) {
                for(var i = 0; i < x.length; ++i)  {
                    var inputField;
                    var inputType;
                    var regex;
                    var message;
                    var name;
                    
                    if (validationTypes[n] != 'hasRegex') {
                        name = x[i];   
                    } else {
                        name = x[i][0];
                        regex = x[i][1];
                        message = x[i][2];
                    }
                    
                    var split = name.split('@');
                    if (split.length == 2) {
                        name = split[0];
                        inputType = split[1];
                    } else {
                        inputType = 'input';
                    }
                    
                    inputField = $(this.form).find(inputType + '[name=' + name + ']');
					
                    if ($(inputField).size() == 0) {
                        message = "Could not find a field with name '" + name + "' and type '" + inputType + "'!";
                        return message;
                    }
                    
                    switch (validationTypes[n]) {
                        case "isRequired" :
                            valid = !this.isEmpty($(inputField).val());
                            errorMsg = this.settings["requiredFieldMsg"];
                            break;
                        case "isEmail" :
                            valid = this.isEmail($(inputField).val());
                            errorMsg = this.settings["emailFieldMsg"];
							if (!valid) {
								var variable = document.getElementById("emailalert");
                				$(variable).css('display', 'block');
							}
                            break;
                        case "isNumeric" :
                            valid = this.isNumeric($(inputField).val());
                            errorMsg = this.settings["numericFieldMsg"];
							if (!valid) {
								var variable = document.getElementById("goalalert");
                				$(variable).css('display', 'block');
							}
                            break;
                        case "isInteger" :
                            valid = this.isInteger($(inputField).val());
                            errorMsg = this.settings["integerFieldMsg"];
                            break;
                        case "hasRegex" :
                            valid = this.testRegex($(inputField).val(), regex);
                            errorMsg = message;
                            break;
                    }
                    
                    if(!valid) {
                        if (!alreadyAlerted || validationTypes[n] == 'hasRegex') {
                            error += errorMsg + "\n";
                            alreadyAlerted = true;
                        }
						$(inputField).css('background-color', this.settings[validationTypes[n]]);
						$(inputField).parent().addClass('error');
                    } else {
                        $(inputField).css('background-color', '');
                    }
                }
            }
        }
        
        return error;
    },
    
    // returns true if the string is not empty
    isEmpty: function (str) {
        return (str == null) || (str == undefined) || (str.length == 0) || /^\s.$/.test(str) ;
    },
    
    // returns true if the string is a valid email
    isEmail: function (str) {
        if(this.isEmpty(str)) return false;
        var re = /^[^\s()<>@,;:\/]+@\w[\w\.-]+\.[a-z]{2,}$/i
        return re.test(str);
    },
    
    // returns true if the string only contains characters 0-9 and is not null
    isNumeric: function (str) {
        if(this.isEmpty(str) && !this.settings['allowNullNumbers']) return false;
        if (isNaN(str)) return false;
        return true;
    },
    
    isInteger: function (str) {
        if (this.isEmpty(str) && !this.settings['allowNullNumbers']) return false;
        if (!str.match(/^[-]?\d+$/)) return false;
        return true;
    },
    
    isArray: function (obj) {
        return obj.constructor == Array;
    },
    
    testRegex : function (str, regex) {
        return regex.test(str);
    }

};

//Actually Validate the Form Using That Mess Up There
$(document).ready(function() {
	var formValidator1 = new ValidatorClass();
	formValidator1.init({
		form: "#contactform",
		isRequired: ['name'],
		isEmail: ['email'],
		bindElement: '.submit',
		callback: function() { return true;}
	});
});

//Sexy Form Click in/out Clearing - Thank you Chris Hinkley.
//Just add class="prompted" to any field.
//Requires jQuery
$(document).ready(function() {
	var defaultValues = [];
	$('input.prompted, textarea.prompted').each(function( intIndex ){
		defaultValues[ $(this).attr('id') ] = $(this).val();
		$(this).addClass('promptText');
	});
	$('input.prompted, textarea.prompted').focus(function(){
		if ( $(this).hasClass('promptText') )
		{
			$(this).val('');
			$(this).removeClass('promptText');
		}
	});
	$('input.prompted, textarea.prompted').blur(function(){
		if ( $(this).val() == '' )
		{
			$(this).addClass('promptText');
			$(this).val( defaultValues[ $(this).attr('id') ] );
		}  
	});
});