var popup_dragging = false;
var popup_target;
var popup_mouseX;
var popup_mouseY;
var popup_mouseposX;
var popup_mouseposY;
var popup_oldfunction;

function loadpopup(id, fp)
    {
        document.getElementById('fpimage').innerHTML='<b>Loading...</b>"';
        var url='AJAXGetData.aspx?TYPE=floorplan&ID=' + fp;
        ajaxFunction(url, 'fpimage', true);
        ctl = document.getElementById(id);
        ctl.style.position   = "absolute";
        ctl.style.visibility = "visible";
        ctl.style.display    = "block";
        document.getElementById('divoverlay').style.visibility='visible';
        document.getElementById(id).style.visibility='visible';
        centerwindow(id);
    }
function centerwindow(id)
    {
        x=-300;
        y=-500;
        ctl = document.getElementById(id);
        ctl.style.left = (document.documentElement.scrollLeft+(document.body.clientWidth -ctl.clientWidth )/2+x)+'px';
        ctl.style.top  = (document.documentElement.scrollTop +(document.body.clientHeight-ctl.clientHeight)/2+y)+'px';
    }
function closepopup(id)
    {
        document.getElementById('fpimage').innerHTML='';
        document.getElementById('divoverlay').style.visibility='hidden';
        document.getElementById(id).style.visibility='hidden';
    }