/* This file is a part of CanDyDOC fileset.
   File is written by Victor Nakoryakov and placed into the public domain.

   This file is javascript with cross-browser utility functions. */

function getLeft(elem)
{
    var ret = 0;

	while (elem.offsetParent)

	{

		ret += elem.offsetLeft;

		elem = elem.offsetParent;

	}


	return ret;
}

function getTop(elem)
{
    var ret = 0;

	while (elem.offsetParent)

	{

		ret += elem.offsetTop;

		elem = elem.offsetParent;

	}


	return ret;
}

function getWindowHeight()

{

    var ret = 0;

    if (typeof(window.innerHeight) == "number")

        ret = window.innerHeight;

    else if (document.documentElement && document.documentElement.clientHeight)

        ret = document.documentElement.clientHeight;

    else if (document.body && document.body.clientHeight)

        ret = document.body.clientHeight;

    

    return ret;

}