// MapLabel() GMaps API extension copyright 2005 Tom Mangan (tmangan@gmail.com)
// http://gmaps.tommangan.us/MapLabel.html
// free for non-commercial use
function MapLabel(){}

MapLabel.prototype.initialize=function(a)
{

    this.parentMap=a;
    var b=a.ownerDocument.createElement('span');
    b.setAttribute('id',this.id);
    b.innerHTML=this.content;
    document.body.appendChild(b);
    b.style.position='absolute';
    b.style.zIndex=1;

    if(this.percentOpacity)
    {
        this.setOpacity(this.percentOpacity);
    }
    
    this.w = document.getElementById(this.id).offsetWidth;
    this.h = document.getElementById(this.id).offsetHeight;
    
    a.div.appendChild(b);
    
    if(!this.markerOffset)
    {
        this.markerOffset=new GSize(0,0);
    }

    this.setPosition();

    GEvent.bind(a,"zoom",this,function(){this.setPosition()});
    GEvent.bind(a,"moveend",this,function(){this.setPosition()});
}

MapLabel.prototype.setPosition=function(c)
{
    if(c)
    {
      this.anchorLatLng=c;
    }

    var a=this.parentMap;

    var b=this.getXY(a,this.anchorLatLng,a.getZoomLevel());

    with(Math)
    {
        switch(this.anchorPoint)
        {
            case 'topLeft':break;
            case 'topCenter':b.x-= floor(this.w/2);break;
            case 'topRight':b.x-= this.w;break;
            case 'midRight':b.x-= this.w;b.y-=floor(this.h/2);break;
            case 'bottomRight':b.x-= this.w;b.y-= this.h;break;
            case 'bottomCenter':b.x-= floor(this.w/2); b.y-=this.h;break;
            case 'bottomLeft':b.y-= this.h;break;
            case 'midLeft':b.y-= floor(this.h/2);break;
            case 'center':b.x-= floor(this.w/2); b.y-=floor(this.h/2);break;
            default:break;
        }
    }

    var offsetX=0;var offsetY=0;
    var x=document.getElementById(this.id);
    x.style.left=b.x-this.markerOffset.width+'px';
    x.style.top=b.y-this.markerOffset.height+'px';
}

MapLabel.prototype.getXY=function(a,b,c)
{
    var e = a.spec.getBitmapCoordinate(b.y,b.x,c);
    return a.getDivCoordinate(e.x,e.y);
}

MapLabel.prototype.setOpacity=function(b)
{
    if(b<0){b=0;} if(b>=100){b=100;}
    var c=b/100;
    var d=document.getElementById(this.id);
    if(typeof(d.style.filter)=='string'){d.style.filter='alpha(opacity:'+b+')';}
    if(typeof(d.style.KHTMLOpacity)=='string'){d.style.KHTMLOpacity=c;}
    if(typeof(d.style.MozOpacity)=='string'){d.style.MozOpacity=c;}
    if(typeof(d.style.opacity)=='string'){d.style.opacity=c;}
}

MapLabel.prototype.addTBug=function(a)
{
    if(typeof(a.MapLabelBugged)=='undefined')
    {
        var b=a.ownerDocument.createElement('div');
        b.id='MapLabelBug';
        b.style.position='absolute';
        b.style.right='0px';
        if(a.TBugged>0){b.style.bottom='32px';}else{b.style.bottom='20px';}
        b.style.backgroundColor='#f2efe9';
        b.style.zIndex=25500;
        b.innerHTML='<a href="http://gmaps.tommangan.us/MapLabel.html" target="_blank" style="font:10px verdana;text-decoration:none;padding:2px;color:#000;">Made with MapLabel</a>';
        a.div.parentNode.appendChild(b);
        var c=0.7;
        var d=document.getElementById(b.id);
        if(typeof(d.style.filter)=='string'){d.style.filter='alpha(opacity:'+c*100+')';}
        if(typeof(d.style.KHTMLOpacity)=='string'){d.style.KHTMLOpacity=c;}
        if(typeof(d.style.MozOpacity)=='string'){d.style.MozOpacity=c;}
        if(typeof(d.style.opacity)=='string'){d.style.opacity=c;}
        a.MapLabelBugged=1;
    }
}

GMap.prototype.addMapLabel=function(a)
{
    a.initialize(this);
}

GMap.prototype.removeMapLabel=function(a)
{
    //alert("Removed:"+a.id);
    this.label = document.getElementById(a.id);
    
    if (this.label)
    {
        this.div.removeChild(this.label);
    }
    //delete(a);
}