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/*
    Nextframe jQuery Plugins
    Author : Fazlur Rahman
    Website : http://fazlurrahman.com
    Version : 1.0.0
    Required Libraries :
        - jQuery
        - jQuery Easing
*/
( function($) {

    $.fn.scrollToTop = function( _duration, _easing ) {
        // Check Options Parameters
        if ( isNaN( _duration ) || _duration === '' ) _duration = 1000;
        if ( _easing === '' ) _easing = 'easeOutQuart';
        // Bind Click Event
        this.click( function (event) {
            event.preventDefault();
            $("html, body").animate({ scrollTop: "0" }, _duration, _easing);
        });
    };

    $.fn.scrollToLink = function( _offset, _duration, _easing, _is_change_url ) {
        // Check Options Parameters
        if ( isNaN( _offset ) || _offset === '' ) _offset = 0;
        if ( isNaN( _duration ) || _duration === '' ) _duration = 1500;
        if ( _easing === undefined || _easing === '' ) _easing = 'easeInOutExpo';
        if ( _is_change_url === undefined || _is_change_url === '' ) _is_change_url = false;
        // Bind Click Event
        this.click( function (event) {
            event.preventDefault();
            var anchor = $(this);
            var href = anchor.attr('href');
            // Change URL
            if ( _is_change_url ) history.pushState(null, null, href);
            // Animate Scroll
            $('html, body').stop().animate({
                scrollTop: $( href ).offset().top - _offset
            }, _duration, _easing);
        });
    };
    
} (jQuery) );