// Version 0.2      the .copy() parameters were wrong
// version 1.0      added .show() .hide() .setContents() .setPoint() .setOpacity() .overlap
// version 1.1      Works with GMarkerManager in v2.67, v2.68, v2.69, v2.70 and v2.71
// version 1.2      Works with GMarkerManager in v2.72, v2.73, v2.74 and v2.75
// version 1.3      add .isHidden()
// version 1.4      permit .hide and .show to be used before addOverlay()
// version 1.5      fix positioning bug while label is hidden
// version 1.6      added .supportsHide()
// version 1.7      fix .supportsHide()


function ELabel(point, html, classname, pixelOffset, percentOpacity, overlap) {
	// Mandatory parameters
	this.point = point;
	this.html = html;

	// Optional parameters
	this.classname = classname||"";
	this.pixelOffset = pixelOffset||new GSize(0,0);
	if (percentOpacity) {
		if(percentOpacity<0){percentOpacity=0;}
		if(percentOpacity>100){percentOpacity=100;}
	}        
	this.percentOpacity = percentOpacity;
	this.overlap=overlap||false;
	this.hidden = false;
} 

ELabel.prototype = new GOverlay();

ELabel.prototype.initialize = function(map) {
	var div = document.createElement("div");
	div.style.position = "absolute";
	div.innerHTML = '<div class="' + this.classname + '">' + this.html + '</div>' ;
	map.getPane(G_MAP_FLOAT_SHADOW_PANE).appendChild(div);
	this.map_ = map;
	this.div_ = div;
	if (this.percentOpacity) {        
		if(typeof(div.style.filter)=='string'){div.style.filter='alpha(opacity:'+this.percentOpacity+')';}
				if(typeof(div.style.KHTMLOpacity)=='string'){div.style.KHTMLOpacity=this.percentOpacity/100;}
				if(typeof(div.style.MozOpacity)=='string'){div.style.MozOpacity=this.percentOpacity/100;}
				if(typeof(div.style.opacity)=='string'){div.style.opacity=this.percentOpacity/100;}
				}
				if (this.overlap) {
				var z = GOverlay.getZIndex(this.point.lat());
				this.div_.style.zIndex = z;
				}
				if (this.hidden) {
				this.hide();
				}
				}

				ELabel.prototype.remove = function() {
				this.div_.parentNode.removeChild(this.div_);
				}

				ELabel.prototype.copy = function() {
				return new ELabel(this.point, this.html, this.classname, this.pixelOffset, this.percentOpacity, this.overlap);
				}

ELabel.prototype.redraw = function(force) {
	var p = this.map_.fromLatLngToDivPixel(this.point);
	var h = parseInt(this.div_.clientHeight);
	this.div_.style.left = (p.x + this.pixelOffset.width) + "px";
	this.div_.style.top = (p.y +this.pixelOffset.height - h) + "px";
}

ELabel.prototype.show = function() {
	if (this.div_) {
		this.div_.style.display="";
		this.redraw();
	}
	this.hidden = false;
}

ELabel.prototype.hide = function() {
	if (this.div_) {
		this.div_.style.display="none";
	}
	this.hidden = true;
}

ELabel.prototype.isHidden = function() {
	return this.hidden;
}

ELabel.prototype.supportsHide = function() {
	return true;
}

ELabel.prototype.setContents = function(html) {
	this.html = html;
	this.div_.innerHTML = '<div class="' + this.classname + '">' + this.html + '</div>' ;
	this.redraw(true);
}

ELabel.prototype.setPoint = function(point) {
	this.point = point;
	if (this.overlap) {
		var z = GOverlay.getZIndex(this.point.lat());
		this.div_.style.zIndex = z;
	}
	this.redraw(true);
}

ELabel.prototype.setOpacity = function(percentOpacity) {
	if (percentOpacity) {
		if(percentOpacity<0){percentOpacity=0;}
		if(percentOpacity>100){percentOpacity=100;}
	}        
	this.percentOpacity = percentOpacity;
	if (this.percentOpacity) {        
		if(typeof(this.div_.style.filter)=='string'){this.div_.style.filter='alpha(opacity:'+this.percentOpacity+')';}
				if(typeof(this.div_.style.KHTMLOpacity)=='string'){this.div_.style.KHTMLOpacity=this.percentOpacity/100;}
				if(typeof(this.div_.style.MozOpacity)=='string'){this.div_.style.MozOpacity=this.percentOpacity/100;}
				if(typeof(this.div_.style.opacity)=='string'){this.div_.style.opacity=this.percentOpacity/100;}
				}
				}

				ELabel.prototype.getPoint = function() {
				return this.point;
				}
				ELabel.prototype.U = function() {
				return this.point;
				}
				ELabel.prototype.V = function() {
				return this.point;
				}
				ELabel.prototype.W = function() {
				return this.point;
				}
				ELabel.prototype.X = function() {
				return this.point;
				}
ELabel.prototype.Y = function() {
	return this.point;
}
ELabel.prototype.Z = function() {
	return this.point;
}