function addevent(obj, evttype, func, cap) {
    cap = cap || false;
    if (obj.addeventlistener) {
        obj.addeventlistener(evttype, func, cap);
        return true;
    } else if (obj.attachevent) {
        if (cap) {
            obj.setcapture();
            return true;
        } else {
            return obj.attachevent("on" + evttype, func);
        }
    } else {
        return false;
    }
}
function getpagescroll() {
    var xscroll, yscroll;
    if (self.pagexoffset) {
        xscroll = self.pagexoffset;
    } else if (document.documentelement && document.documentelement.scrollleft) {
        xscroll = document.documentelement.scrollleft;
    } else if (document.body) {
        xscroll = document.body.scrollleft;
    }
    if (self.pageyoffset) {
        yscroll = self.pageyoffset;
    } else if (document.documentelement && document.documentelement.scrolltop) {
        yscroll = document.documentelement.scrolltop;
    } else if (document.body) {
        yscroll = document.body.scrolltop;
    }
    arraypagescroll = new array(xscroll, yscroll);
    return arraypagescroll;
}
function getpagesize() {
    var xscroll, yscroll;
    if (window.innerheight && window.scrollmaxy) {
        xscroll = document.body.scrollwidth;
        yscroll = window.innerheight + window.scrollmaxy;
    } else if (document.body.scrollheight > document.body.offsetheight) {
        xscroll = document.body.scrollwidth;
        yscroll = document.body.scrollheight;
    } else {
        xscroll = document.body.offsetwidth;
        yscroll = document.body.offsetheight;
    }
    var windowwidth, windowheight;
    if (self.innerheight) {
        windowwidth = self.innerwidth;
        windowheight = self.innerheight;
    } else if (document.documentelement && document.documentelement.clientheight) {
        windowwidth = document.documentelement.clientwidth;
        windowheight = document.documentelement.clientheight;
    } else if (document.body) {
        windowwidth = document.body.clientwidth;
        windowheight = document.body.clientheight;
    }
    if (yscroll < windowheight) {
        pageheight = windowheight;
    } else {
        pageheight = yscroll;
    }
    if (xscroll < windowwidth) {
        pagewidth = windowwidth;
    } else {
        pagewidth = xscroll;
    }
    arraypagesize = new array(pagewidth, pageheight, windowwidth, windowheight)
    return arraypagesize;
}