$(function() {
    var name = $( "#name" ),
        city = $( "#city" ),
        state = $( "#state" ),
        zip = $( "#zip" ),
        email = $( "#email" ),
        cbr = $( "#cbr" ),
        history = $( "#history" ),
        allFields = $( [] ).add( name ).add( city ).add( state ).add( zip ).add( email ).add( cbr ).add( history ),
        tips = $( ".validateTips" );

    function updateTips( t ) {
        tips
            .text( t )
            .addClass( "ui-state-highlight" );
        setTimeout(function() {
            tips.removeClass( "ui-state-highlight", 1500 );
        }, 500 );
    }

    function checkLength( o, n, min, max ) {
        if ( o.val().length > max || o.val().length < min ) {
            o.addClass( "ui-state-error" );
            updateTips( "Length of " + n + " must be between " +
                min + " and " + max + "." );
            return false;
        } else {
            return true;
        }
    }

    function notEmpty( o, n ) {
        if( o.val().length < 1) {
            o.addClass( "ui-state-error" );
            updateTips( "Please fill in " + n + "." );
            return false;
        } else {
            return true;
        }
    }

    function checkRegexp( o, regexp, n ) {
        if ( !( regexp.test( o.val() ) ) ) {
            o.addClass( "ui-state-error" );
            updateTips( n );
            return false;
        } else {
            return true;
        }
    }

    $( "#dialog-form" ).dialog({
        autoOpen: false,
        height: 870,
        width: 500,
        modal: true,
        buttons: {
            "Send an email": function() {
                var bValid = true;
                allFields.removeClass( "ui-state-error" );

                bValid = bValid && notEmpty( name, "name");
                bValid = bValid && notEmpty( city, "city");
                bValid = bValid && notEmpty( state, "state");
                bValid = bValid && notEmpty( zip, "zip");
                bValid = bValid && checkRegexp( zip, /^[0-9]{5}$/, "Zip must be 5 numbers" );
                // From jquery.validate.js (by joern), contributed by Scott Gonzalez: http://projects.scottsplayground.com/email_address_validation/
                bValid = bValid && checkRegexp( email, /^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?$/i, "eg. ui@jquery.com" );
                bValid = bValid && checkRegexp( cbr, /^[01]?[- .]?\(?[2-9]\d{2}\)?[- .]?\d{3}[- .]?\d{4}$/, "Please enter a contact number." );
                bValid = bValid && notEmpty( history, "history");

                if ( bValid ) {
                    $( "#ui-comment-form" ).submit();
                    $( this ).dialog( "close" );
                }
            },
            Cancel: function() {
                $( this ).dialog( "close" );
            }
        },
        close: function() {
            allFields.val( "" ).removeClass( "ui-state-error" );
        }
    });

    $( "#contact-us" )
        .button()
        .click(function() {
            $( "#dialog-form" ).dialog( "open" );
        });
});