var myImg= new Array(89)
  myImg[0]= "90";
  myImg[1]= "89";
  myImg[2]= "88";
  myImg[3]= "87";
  myImg[4]= "86";
  myImg[5]= "85";
  myImg[6]= "84";
  myImg[7]= "83";
  myImg[8]= "82";
  myImg[9]= "81";
  myImg[10]= "80";
  myImg[11]= "79";
  myImg[12]= "78";
  myImg[13]= "77";
  myImg[14]= "76";
  myImg[15]= "75";
  myImg[16]= "74";
  myImg[17]= "73";
  myImg[18]= "72";
  myImg[19]= "71";
  myImg[20]= "70";
  myImg[21]= "69";
  myImg[22]= "68";
  myImg[23]= "67";
  myImg[24]= "66";
  myImg[25]= "65";
  myImg[26]= "64";
  myImg[27]= "63";
  myImg[28]= "62";
  myImg[29]= "61";
  myImg[30]= "60";
  myImg[31]= "59";
  myImg[32]= "58";
  myImg[33]= "57";
  myImg[34]= "56";
  myImg[35]= "55";
  myImg[36]= "54";
  myImg[37]= "53";
  myImg[38]= "52";
  myImg[39]= "51";
  myImg[40]= "50";
  myImg[41]= "49";
  myImg[42]= "48";
  myImg[43]= "47";
  myImg[44]= "46";
  myImg[45]= "45";
  myImg[46]= "44";
  myImg[47]= "43";
  myImg[48]= "42";
  myImg[49]= "41";
  myImg[50]= "40";
  myImg[51]= "39";
  myImg[52]= "38";
  myImg[53]= "37";
  myImg[54]= "36";
  myImg[55]= "35";
  myImg[56]= "34";
  myImg[57]= "33";
  myImg[58]= "32";
  myImg[59]= "31";
  myImg[60]= "30";
  myImg[61]= "29";
  myImg[62]= "28";
  myImg[63]= "27";
  myImg[64]= "26";
  myImg[65]= "25";
  myImg[66]= "24";
  myImg[67]= "23";
  myImg[68]= "22";
  myImg[69]= "21";
  myImg[70]= "20";
  myImg[71]= "19";
  myImg[72]= "18";
  myImg[73]= "17";
  myImg[74]= "16";
  myImg[75]= "15";
  myImg[76]= "14";
  myImg[77]= "13";
  myImg[78]= "12";
  myImg[79]= "11";
  myImg[80]= "10";
  myImg[81]= "9";
  myImg[82]= "8";
  myImg[83]= "7";
  myImg[84]= "6";
  myImg[85]= "5";
  myImg[86]= "4";
  myImg[87]= "3";
  myImg[88]= "2";
  myImg[89]= "1";


myImgSrc = "/images/Construction/";
myImgEnd = ".jpg"
var i = 0;

function loadImg(){
  document.mainimage.src = myImgSrc + myImg[i] + myImgEnd;
}

function prev(){
  if(i<1){
    var l = i
  } else {
    var l = i-=1;
  }
  document.mainimage.src = myImgSrc + myImg[l] + myImgEnd;
}

function next(){
  if(i>89){
    var l = i
  } else {
    var l = i+=1;
  }
  document.mainimage.src = myImgSrc + myImg[l] + myImgEnd;
}

window.onload=loadImg;