function EStyle(stemImage, stemSize, boxClass, boxOffset) {
    this.stemImage = '/images/popup/' + stemImage;
    this.stemSize = stemSize;
    this.boxClass = boxClass;
    this.boxOffset = boxOffset;
    //this.border = border;

    // Known fudge factors are:
    // Firefox (1.0.6 and 1.5)    5, -1
    // IE 6.0                     0, -1
    // Opera 8.54                 3, -1
    // Opera 9 prev               4, -1
    // Netscape (7.2, 8.0)        5, -1
    // Safari                     5, -1

    var agent = navigator.userAgent.toLowerCase();

    var fudge = 5;  // assume Netscape if no match found

    if (agent.indexOf("opera") > -1) {
    fudge = 3;
    }
    if (agent.indexOf("firefox") > -1) {
    fudge = 5;
    }
    if (agent.indexOf("safari") > -1) {
    fudge = 5;
    }
    if ((agent.indexOf("msie") > -1) && (agent.indexOf("opera") < 1)){
    fudge = 0;
    }
    this.fudge = fudge;
}

var E_STYLE_1 = new EStyle("stem1.gif", new GSize(94,68), "estyle1", new GPoint(-80,68-3));
var E_STYLE_2 = new EStyle("stem2.png", new GSize(81,87), "estyle2", new GPoint(-30,87-1));
var E_STYLE_3 = new EStyle("stem3.png", new GSize(81,87), "estyle3", new GPoint(-30,87-10));
var E_STYLE_4 = new EStyle("stem3.png", new GSize(81,87), "estyle4", new GPoint(-30,87-10));
var E_STYLE_5 = new EStyle("stem1.png", new GSize(81,87), "estyle5", new GPoint(-30,87-3));
var E_STYLE_6 = new EStyle("stem6.png", new GSize(100,50), "estyle6", new GPoint(100-2,20));


function EWindow(map,estyle) {
    // parameters
    this.map=map;
    this.estyle=estyle;
    // internal variables
    this.visible = false;
    // browser - specific variables
    this.ie = false;
    var agent = navigator.userAgent.toLowerCase();
    if ((agent.indexOf("msie") > -1) && (agent.indexOf("opera") < 1)){ this.ie = true} else {this.ie = false}
}

EWindow.prototype = new GOverlay();

EWindow.prototype.initialize = function(map) {
    var div1 = document.createElement("div");
    div1.style.position = "absolute";
    map.getPane(G_MAP_FLOAT_PANE).appendChild(div1);
    var div2 = document.createElement("div");
    div2.style.position = "absolute";
    div2.style.width = this.estyle.stemSize.width+"px";
    map.getPane(G_MAP_FLOAT_PANE).appendChild(div2);
    this.div1 = div1;
    this.div2 = div2;
    GEvent.addDomListener(this.div1, 'mousedown', function () { map.disableDragging(); });
    GEvent.addDomListener(this.div1, 'mouseup', function () { map.enableDragging(); });
}

EWindow.prototype.openOnMap = function(point, html, offset) {
    this.offset = offset||new GPoint(0,0);
    this.point = point;

    this.div1.innerHTML = '<div class="' + this.estyle.boxClass + '"><a href="#" onclick="myMap.results.closeResultInfo();myMap.eW.hide(); return false;" style="float: right; margin: 0 0 5px 5px;"><img src="/images/popup/estyle1-close.gif" style="border: 0" /></a>' + html + '</div>';
    if (this.ie && this.estyle.stemImage.toLowerCase().indexOf(".png")>-1) {
    var loader = "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+this.estyle.stemImage+"', sizingMethod='scale');";
    this.div2.innerHTML = '<div style="height:' +this.estyle.stemSize.height+ 'px; width:'+this.estyle.stemSize.width+'px; ' +loader+ '" ></div>';
    } else {
    this.div2.innerHTML = '<img src="' + this.estyle.stemImage + '" width="' + this.estyle.stemSize.width +'" height="' + this.estyle.stemSize.height +'">';
    }
    var z = GOverlay.getZIndex(this.point.lat());
    this.div1.style.zIndex = z;
    this.div2.style.zIndex = z+1;
    this.visible = true;
    this.show();
    this.redraw(true);
}

EWindow.prototype.openOnMarker = function(marker,html) {
    var vx = marker.getIcon().iconAnchor.x + marker.getIcon().infoWindowAnchor.x;
    var vy = marker.getIcon().iconAnchor.y + marker.getIcon().infoWindowAnchor.y;
    this.openOnMap(marker.getPoint(), html, new GPoint(vx,vy));
}


EWindow.prototype.redraw = function(force) {
    if (!this.visible) {return;}
    var p = this.map.fromLatLngToDivPixel(this.point);
    this.div2.style.left   = (p.x + this.offset.x) + "px";
    this.div2.style.bottom = (-p.y + this.offset.y -this.estyle.fudge) + "px";
    this.div1.style.left   = (p.x + this.offset.x + this.estyle.boxOffset.x) + "px";
    this.div1.style.bottom = (-p.y + this.offset.y + this.estyle.boxOffset.y) + "px";
}

EWindow.prototype.remove = function() {
    this.div1.parentNode.removeChild(this.div1);
    this.div2.parentNode.removeChild(this.div2);
    this.visible = false;
}

EWindow.prototype.copy = function() {
    return new EWindow(this.map, this.estyle);
}

EWindow.prototype.show = function() {
    this.div1.style.display="";
    this.div2.style.display="";
    this.visible = true;
}

EWindow.prototype.hide = function() {
    this.div1.style.display="none";
    this.div2.style.display="none";
    this.visible = false;
}