The Google Maps Image Cutter
http://www.casa.ucl.ac.uk/software/googlemapimagecutter.asp
tilelayers[0].getTileUrl = function (a,b) {
var c=Math.pow(2,b);
var d=a.x;
var e=a.y;
var f="t";
for(var g=0;g<b;g++){
c=c/2;
if(e<c){
if(d<c){f+="q"}
else{f+="r";d-=c}
}
else{
if(d<c){f+="t";e-=c}
else{f+="s";d-=c;e-=c}
}
}
return "画像へのパス"+f+".jpg";
} ;