var tileSources =  [ //grepmeaway
"osd_65_3.dzi",
"osd_61_3.dzi",
"osd_60_3.dzi",
"osd_59_3.dzi",
"osd_58_3.dzi",
"osd_57_3.dzi",
"osd_56_3.dzi",
"osd_55_3.dzi",
"osd_53_3.dzi",
"osd_51_3.dzi",
"osd_49_3.dzi",
"osd_48_3.dzi",
"osd_45_3.dzi",
"osd_44_3.dzi",
]; //grepmeaway