function getRealLeft(el) {
    if (arguments.length==0) el = this;
    if (is.ie){
    	xPos = el.offsetLeft;
    	tempEl = el.offsetParent;
    	while (tempEl != null) {
       		xPos += tempEl.offsetLeft;
       		tempEl = tempEl.offsetParent;
    	}
    } else {
    	xPos = el.x;
    }
    return xPos;
}

function getRealTop(el) {
    if (arguments.length==0) el = this;
    if (is.ie){
	yPos = el.offsetTop;
	tempEl = el.offsetParent;
	while (tempEl != null) {
		yPos += tempEl.offsetTop;
		tempEl = tempEl.offsetParent;
	}
    } else {
	yPos = el.y;
    }
    return yPos;
}