var controls = new Array('inv_drdn_nl','inv_drdn_n0');
/*******************
* Ivan Kudryavtsev
* 2005/07/20
*******************/
function getElementPosition(elemID)
{
     var offsetTrail = document.getElementById(elemID);
     var offsetLeft = 0;
     var offsetTop = 0;
     while(offsetTrail)
     {
         offsetLeft += offsetTrail.offsetLeft;
         offsetTop += offsetTrail.offsetTop;
         offsetTrail = offsetTrail.offsetParent;
     }
     return new Array(offsetLeft,offsetTop);
}
function clean_all()
{	
    var i;
    for(i = 0; i < controls.length; i ++)
    {
	var el = document.getElementById(controls[i]);
	if (el)
	{
    	    el.style.display="none";
	}
    }
}
function enable(elt,elemID)
{
    clean_all();
    var pos = getElementPosition(elt);
    var elemID = document.getElementById(elemID);
    if (elemID && pos)
    {
	elemID.style.display="block";
	elemID.style.left = pos[0] + "px"; 
    }
}
function bglight(el)
{
    l = document.getElementById(el);
    if (l)
    {
        l.style.backgroundColor = '#98D8F4';
	l.childNodes[1].style.color = '#027ABB';
    }
}
function bgdark(el)
{
    l = document.getElementById(el);
    if (l)
    {
        l.style.backgroundColor = '#027ABB';
	l.childNodes[1].style.color = 'white';
    }
}
function bglightimg(el)
{
    l = document.getElementById(el);
    if (l)
    {
	l.style.backgroundColor = '#027ABB';
    }
}

function bgdarkimg(el)
{
    l = document.getElementById(el);
    if (l)
    {
	l.style.backgroundColor = 'transparent';
    }
}
function colormenu()
{
    var u;
    u = document.URL;
    var re=/^.*\/([\w\.\-]*)\?*/i;
    var my_id = u.match(re);
    var l;
    l = document.getElementById(my_id[1]);
    if (l)
    {
	l.style.backgroundColor = '#98D8F4';
    }
}