var tileSources =  [ //grepmeaway
"osd_74_3.dzi",
"osd_72_3.dzi",
"osd_70_3.dzi",
"osd_69_3.dzi",
"osd_68_3.dzi",
"osd_67_3.dzi",
"osd_66_3.dzi",
"osd_65_3.dzi",
"osd_64_3.dzi",
"osd_63_3.dzi",
"osd_62_3.dzi",
"osd_61_3.dzi",
"osd_60_3.dzi",
"osd_54_3.dzi",
"osd_53_3.dzi",
"osd_50_3.dzi",
"osd_49_3.dzi",
"osd_47_3.dzi",
"osd_46_3.dzi",
"osd_45_3.dzi",
"osd_44_3.dzi",
"osd_42_3.dzi",
"osd_41_3.dzi",
"osd_40_3.dzi",
"osd_39_3.dzi",
"osd_38_3.dzi",
"osd_18_3.dzi",
"osd_17_3.dzi",
"osd_16_3.dzi",
"osd_14_3.dzi",
"osd_13_3.dzi",
"osd_12_3.dzi",
"osd_11_3.dzi",
"osd_7_3.dzi",
"osd_6_3.dzi",
"osd_5_3.dzi",
"osd_4_3.dzi",
"osd_3_3.dzi",
]; //grepmeaway