// http://www.mapy.cz/main.js
N = (document.all) ? 0 : 1;
var over = false;

var startX = 0;
var startY = 0;
var clipLeft = 0;
var clipTop = 0;

function MU(e)
{
    if (over)
    {
        if ((N) && (e.which == 1))
        {
            clipLeft = 1*e.pageX-1*e.layerX
            clipTop = 1*e.pageY-1*e.layerY;

            startX=e.pageX;
            startY=e.pageY;
        }
        else
        {
            if (event.button == 1)
            {
                clipLeft = event.clientX+document.body.scrollLeft-event.offsetX;
                clipTop = event.clientY+document.body.scrollTop-event.offsetY;

                startX=event.clientX+document.body.scrollLeft;
                startY=event.clientY+document.body.scrollTop;
            }
        }
        x1 = startX-clipLeft;
        y1 = startY-clipTop;
//      alert (startX+' '+clipLeft);
//      alert (startY+' '+clipTop);
//      alert (x1+' / '+y1);

        goInfo(x1,y1);
        over = false;
    }
}

function init()
{
    if (N)
    {
        ob = document.getElementById(targetId);

        clipLeft = 1*e.pageX-1*e.layerX
        clipTop = 1*e.pageY-1*e.layerY;

        startX=e.pageX;
        startY=e.pageY;
    }
    else
    {
        if (event.button == 1)
        {
            ob = document.getElementById(targetId);
            ob = ob.style;

            clipLeft = event.clientX+document.body.scrollLeft-event.offsetX;
            clipTop = event.clientY+document.body.scrollTop-event.offsetY;

            startX=event.clientX+document.body.scrollLeft;
            startY=event.clientY+document.body.scrollTop;
        }
    }

}

if (N)
{
    document.captureEvents(Event.MOUSEUP);
}


document.onmouseup = MU;