var image_dir = "images/";
var ImageNum = 0;
var TotalNum = 0;

imageArray = new Array();
imageArray[ImageNum++] = image_dir + "Rsanmateo4_1.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_2.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_3.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_4.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_5.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_6.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_7.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_8.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_9.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_10.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_11.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_12.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_13.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_14.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_15.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_16.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_17.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_18.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_19.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_20.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_21.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_22.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_23.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_24.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_25.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_26.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_27.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_28.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_29.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_30.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_31.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_32.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_33.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_34.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_35.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_36.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_37.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_38.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_39.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_40.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_41.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_42.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_43.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_44.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_45.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_46.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_47.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_48.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_49.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_50.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_51.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_52.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_53.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_54.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_55.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_56.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_57.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_58.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_59.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_60.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_61.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_62.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_63.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_64.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_65.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_66.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_67.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_68.jpg";
imageArray[ImageNum++] = image_dir + "Rsanmateo4_69.jpg";

TotalNum = ImageNum;
ImageNum = -1;

function AvanzaImage()
{
   ImageNum++;
   if (ImageNum == TotalNum)
     ImageNum=0;
   document.mainimage.src = imageArray[ImageNum];
}

function RetrocedeImage()
{
   ImageNum--;
   if (ImageNum == -1)
     ImageNum= TotalNum - 1;
   document.mainimage.src = imageArray[ImageNum];
}