function fixEvent(e) {
	// получить объект событие для IE
	e = e || window.event

	// добавить pageX/pageY для IE
	if ( e.pageX == null && e.clientX != null ) {
		var html = document.documentElement
		var body = document.body
		e.pageX = e.clientX + (html && html.scrollLeft || body && body.scrollLeft || 0) - (html.clientLeft || 0)
		e.pageY = e.clientY + (html && html.scrollTop || body && body.scrollTop || 0) - (html.clientTop || 0)
	}

	// добавить which для IE
	if (!e.which && e.button) {
		e.which = e.button & 1 ? 1 : ( e.button & 2 ? 3 : ( e.button & 4 ? 2 : 0 ) )
	}

	return e
}

function getOffset(elem) {
    if (elem.getBoundingClientRect) {
        return getOffsetRect(elem)
    } else {
        return getOffsetSum(elem)
    }
}

function getOffsetRect(elem) {
    var box = elem.getBoundingClientRect()
 
    var body = document.body
    var docElem = document.documentElement
 
    var scrollTop = window.pageYOffset || docElem.scrollTop || body.scrollTop
    var scrollLeft = window.pageXOffset || docElem.scrollLeft || body.scrollLeft
    var clientTop = docElem.clientTop || body.clientTop || 0
    var clientLeft = docElem.clientLeft || body.clientLeft || 0
    var top  = box.top +  scrollTop - clientTop
    var left = box.left + scrollLeft - clientLeft
 
    return { top: Math.round(top), left: Math.round(left) }
}

function getOffsetSum(elem) {
    var top=0, left=0
    while(elem) {
        top = top + parseInt(elem.offsetTop)
        left = left + parseInt(elem.offsetLeft)
        elem = elem.offsetParent        
    }
 
    return {top: top, left: left}
}