var badBrowser = (/MSIE ((5\.5)|6)/.test(navigator.userAgent) && navigator.platform == "Win32");
var imgSayfabasinadon = ('https:' == document.location.protocol ? 'https://' : 'http://') + 'www.intersociety.net/iis/images/scrolltop.png';

if (!badBrowser) {
    var scrolltotop = { setting: { startline: 200, scrollto: 0, scrollduration: 1000, fadeduration: [500, 100] },
        controlHTML: '<div style=" background:url(' + imgSayfabasinadon + ') top left no-repeat; width:141px; height:40px; margin:5px;">&nbsp;</div>', controlattrs: { offsetx: 5, offsety: 5 }, anchorkeyword: '#top', state: { isvisible: false, shouldvisible: false }, scrollup: function () {
            if (!this.cssfixedsupport)
                this.$control.css({ opacity: 0 })
            var dest = isNaN(this.setting.scrollto) ? this.setting.scrollto : parseInt(this.setting.scrollto)
            if (typeof dest == "string" && jQuery('#' + dest).length == 1)
                dest = jQuery('#' + dest).offset().top
            else
                dest = 0
            this.$body.animate({ scrollTop: dest }, this.setting.scrollduration);
        }, keepfixed: function () {
            var $window = jQuery(window)
            var controlx = $window.scrollLeft() + $window.width() - this.$control.width() - this.controlattrs.offsetx
            var controly = $window.scrollTop() + $window.height() - this.$control.height() - this.controlattrs.offsety
            this.$control.css({ left: controlx + 'px', top: controly + 'px' })
        }, togglecontrol: function () {
            var scrolltop = jQuery(window).scrollTop()
            if (!this.cssfixedsupport)
                this.keepfixed()
            this.state.shouldvisible = (scrolltop >= this.setting.startline) ? true : false
            if (this.state.shouldvisible && !this.state.isvisible) {
                this.$control.stop().animate({ opacity: 1 }, this.setting.fadeduration[0])
                this.state.isvisible = true
            }
            else if (this.state.shouldvisible == false && this.state.isvisible) {
                this.$control.stop().animate({ opacity: 0 }, this.setting.fadeduration[1])
                this.state.isvisible = false
            }
        }, init: function () {
            jQuery(document).ready(function ($) {
                var mainobj = scrolltotop
                var iebrws = document.all
                mainobj.cssfixedsupport = !iebrws || iebrws && document.compatMode == "CSS1Compat" && window.XMLHttpRequest
                mainobj.$body = (window.opera) ? (document.compatMode == "CSS1Compat" ? $('html') : $('body')) : $('html,body')
                mainobj.$control = $('<div id="topcontrol">' + mainobj.controlHTML + '</div>').css({ position: mainobj.cssfixedsupport ? 'fixed' : 'absolute', bottom: mainobj.controlattrs.offsety, right: mainobj.controlattrs.offsetx, opacity: 0, cursor: 'pointer', zIndex: '999' }).attr({ title: 'Back to top !' }).click(function () { mainobj.scrollup(); return false }).appendTo('body')
                if (document.all && !window.XMLHttpRequest && mainobj.$control.text() != '')
                    mainobj.$control.css({ width: mainobj.$control.width() })
                mainobj.togglecontrol()
                $('a[href="' + mainobj.anchorkeyword + '"]').click(function () {
                    mainobj.scrollup()
                    return false
                })
                $(window).bind('scroll resize', function (e) { mainobj.togglecontrol() })
            })
        }
    }
    scrolltotop.init()
}