var today = new Date();
var Ymkobjs=new Array();
var idnum=0;
var millisecondsLeft = today.getTime(); 
millisecondsLeft = Math.round(millisecondsLeft);

function ll_to_xy(lat, lon, level)
{
    circum_px = 1 << (26 - level);
    x_per_lon_ = circum_px / 360.0;
    tile_h_=256;tile_w_=256;
    ntiles_h_ = circum_px / tile_h_;
    pixel_height=ntiles_h_*tile_h_;
    alat = Math.abs(lat);
    alon = lon + 180.0;
    if(alat >= 90.0 || alon > 360.0 || alon < 0.0)
        return(0);
    alat *= 3.1415926 / 180.0;
    x = parseInt(alon * x_per_lon_);
    ytemp = (Math.log(Math.tan(alat) + 1.0 / Math.cos(alat))) / 3.1415926;
    y = parseInt(ytemp * pixel_height) / 2;
    if(lat < 0) y = -y;
    xp=x;
    yp=y;
    x=0;y=0;
    ypos = (yp < 0) ? -yp : yp;
    col = xp / tile_w_;
    x = xp % tile_w_;
    row = ypos / tile_h_;
    y = ypos % tile_h_;
    if(yp < 0)
    {
        row = -row;
        if(y > 0)
        {
            row--;
            y = tile_h_ - y;
        }
    }
    row=parseInt(row);
    col=parseInt(col);
    return (new Array(col,row));
}

function ll_to_pxy(lat,lon,z){
  circum_px=(1<<(26-z));
  _cp=new Array();
  alon=lon+180;
  ltmp=Math.abs(alon) % 360;
  if(alon<0)
    alon=360-ltmp;
  if(alon>360)
    alon=ltmp;
  alat=Math.abs(lat);
  if(alat>90)
    alat=90;
  alat*=(Math.PI/180);
  _cp[0]=parseInt(alon*(circum_px/360));
  ytemp=Math.log(Math.tan(alat)+1.0/Math.cos(alat))/Math.PI;
  _cp[1]=parseInt(ytemp*((circum_px/256)*256))/2;
  if(lat<0)
    _cp[1]=-_cp[1];
  return _cp;
}
function pxy_to_ll(x_pixel,y_pixel,z){
  circum_px=(1<<(26-z));
  _gp=new Array();
  alon=x_pixel/(circum_px/360);
  ltmp=Math.abs(alon)%360;
  if(alon<0)
    alon=360-ltmp;
  if(alon>360)
    alon=ltmp;
  _gp[1]=alon-180;
  alat=(y_pixel/(((circum_px/256)*256)/2))*Math.PI;
  alat=Math.atan(Math.sinh(alat))/(Math.PI/180);
  if(alat<-90)
    alat=-90;
  if(alat>90)
    alat=90;
  _gp[0]=alat;
  return _gp;
}
function ntiles_w_(z){
	circum_px = 1 << (26 - z);
	ntiles_w_ = circum_px / 256;
	return ntiles_w_;
}

function makeImap(){
	var container="<div style='position:relative;width:390px;height:290px;overflow:hidden;' id='imgmap_"+millisecondsLeft+"'>";
	container=container+"<img src='http://kr.imap.maps.yahoo.com/CustIMG/getCustImg2.php?ver=1.0&lat=37.552382080911&lon=126.92090368759&width=390&height=290&z=3&t=m&ftype=png&logo=N&pin=N' width='390' height='290' border='0'>";
	container=container+"</div>";
	document.write(container);
}
function makeYMarker(w, h, pos, content){
	idnum=idnum+1;
	var odiv=document.createElement("DIV");
	var trnsxy=transXY(pos);
	odiv.id="marker_"+idnum;Ymkobjs.push("marker_"+idnum);
	odiv.style.width=w+"px";odiv.style.height=h+"px";odiv.style.float="left";odiv.style.position="absolute";
	odiv.style.top=(trnsxy[1]-h-10)+"px";odiv.style.left=trnsxy[0]+"px";odiv.style.padding=0;odiv.style.margin=0;
	odiv.innerHTML=content;
	document.getElementById('imgmap_'+millisecondsLeft).appendChild(odiv);
	return document.getElementById("marker_"+idnum);
}
function clearYMarker(){
	for(i=0;i<Ymkobjs.length;i++){
		try{document.getElementById(Ymkobjs[i]).parentNode.removeChild(document.getElementById(Ymkobjs[i]));}catch(e){alert(e);}
	}
}
function transXY(pos){
	var lat=parseFloat(pos[0]);
	var lon=parseFloat(pos[1]);
	var cW=parseInt(195);
	var cH=parseInt(145);
	var cLat=parseFloat(37.552382080911);
	var cLon=parseFloat(126.92090368759);
	var z=parseInt(3);
	var x=parseFloat(ll_to_pxy(lat,lon,z)[0]) - (parseFloat(ll_to_pxy(cLat,cLon,z)[0]) - cW);
	var y=parseFloat(ll_to_pxy(lat,lon,z)[1])-(parseFloat(ll_to_pxy(cLat,cLon,z)[1]) - cH);
	y=(cH*2)-y;
	return (new Array(x,y));
}
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