var o = new Date()
var p = o.getTime()
var MAGIC_NUMBER=6356752.3142;
var WGS84_SEMI_MAJOR_AXIS = 6378137.0;
var WGS84_ECCENTRICITY = 0.0818191913108718138;

var DEG2RAD=0.0174532922519943;
var PI=3.14159267;


var FORMAT_DEFAULT="image/png";

var MERC_ZOOM_DEFAULT = 15;
function dd2MercMetersLng(p_lng) {
	return WGS84_SEMI_MAJOR_AXIS * (p_lng*DEG2RAD);
}

function dd2MercMetersLat(p_lat) {
	var lat_rad = p_lat * DEG2RAD;
	return WGS84_SEMI_MAJOR_AXIS * Math.log(Math.tan((lat_rad + PI / 2) / 2) * Math.pow( ((1 - WGS84_ECCENTRICITY * Math.sin(lat_rad)) / (1 + WGS84_ECCENTRICITY * Math.sin(lat_rad))), (WGS84_ECCENTRICITY/2)));
}

CustomGetTileUrlPHP=function(a,b,c) {
	if (this.myMercZoomLevel == undefined) {
    	this.myMercZoomLevel = MERC_ZOOM_DEFAULT;
	}

	if (this.myFormat == undefined) {
    	this.myFormat = FORMAT_DEFAULT;
	}

	if (typeof(window['this.myStyles'])=="undefined") this.myStyles="";
	var lULP = new GPoint(a.x*256,(a.y+1)*256);
	var lLRP = new GPoint((a.x+1)*256,a.y*256);
	var lUL = G_NORMAL_MAP.getProjection().fromPixelToLatLng(lULP,b,c);
	var lLR = G_NORMAL_MAP.getProjection().fromPixelToLatLng(lLRP,b,c);

	if (this.myMercZoomLevel!=0 && map.getZoom() < this.myMercZoomLevel) {
		var lBbox=dd2MercMetersLng(lUL.x)+","+dd2MercMetersLat(lUL.y)+","+dd2MercMetersLng(lLR.x)+","+dd2MercMetersLat(lLR.y);
	//	var lSRS="EPSG:54004";
	} else {
		var lBbox=lUL.x+","+lUL.y+","+lLR.x+","+lLR.y;
		var lSRS="EPSG:4326";
	} 
	var lURL=this.myBaseURL;
	//lURL+="&REQUEST=GetMap";
	//lURL+="&SERVICE=WMS";
	//lURL+="&VERSION=1.1.3";
	//lURL+="&LAYERS="+this.myLayers;
	//lURL+="&STYLES="+this.myStyles;
	//lURL+="&FORMAT="+this.myFormat;
	//lURL+="&BGCOLOR=0xFFFFFF";
	//lURL+="&TRANSPARENT=TRUE";
	//lURL+="&SRS="+lSRS;
	lURL+="BBOX="+lBbox;
	//lURL+="&WIDTH=256";
	//lURL+="&HEIGHT=256";
	//lURL+="&reaspect=false";
	//lURL+="&r="+p;
	return lURL;
}

function customOpacity() { return this.myOpacity; }