var imgobj;
if(document.images){
   var hospital_00_off = new Image();
   var hospital_01_off = new Image();
   var hospital_02_off = new Image();
   var hospital_03_off = new Image();
   var hospital_04_off = new Image();
   var hospital_05_off = new Image();
   var hospital_06_off = new Image();
   var hospital_07_off = new Image();
   var hospital_08_off = new Image();
   var hospital_09_off = new Image();
   var hospital_10_off = new Image();
   var hospital_11_off = new Image();
   var hospital_12_off = new Image();
   var school_01_off = new Image();
   var school_02_off = new Image();
   var school_03_off = new Image();
   var school_04_off = new Image();
   var school_05_off = new Image();
   var school_06_off = new Image();

   var hospital_00_on = new Image();
   var hospital_01_on = new Image();
   var hospital_02_on = new Image();
   var hospital_03_on = new Image();
   var hospital_04_on = new Image();
   var hospital_05_on = new Image();
   var hospital_06_on = new Image();
   var hospital_07_on = new Image();
   var hospital_08_on = new Image();
   var hospital_09_on = new Image();
   var hospital_10_on = new Image();
   var hospital_11_on = new Image();
   var hospital_12_on = new Image();
   var school_01_on = new Image();
   var school_02_on = new Image();
   var school_03_on = new Image();
   var school_04_on = new Image();
   var school_05_on = new Image();
   var school_06_on = new Image();
 }

function Init(){
   hospital_00_off.src = "../image/menu/hospital_00_off.gif";
   hospital_01_off.src = "../image/menu/hospital_01_off.gif";
   hospital_02_off.src = "../image/menu/hospital_02_off.gif";
   hospital_03_off.src = "../image/menu/hospital_03_off.gif";
   hospital_04_off.src = "../image/menu/hospital_04_off.gif";
   hospital_05_off.src = "../image/menu/hospital_05_off.gif";
   hospital_06_off.src = "../image/menu/hospital_06_off.gif";
   hospital_07_off.src = "../image/menu/hospital_07_off.gif";
   hospital_08_off.src = "../image/menu/hospital_08_off.gif";
   hospital_09_off.src = "../image/menu/hospital_09_off.gif";
   hospital_10_off.src = "../image/menu/hospital_10_off.gif";
   hospital_11_off.src = "../image/menu/hospital_11_off.gif";
   hospital_12_off.src = "../image/menu/hospital_12_off.gif";
   school_01_off.src = "../image/menu/school_01_off.gif";
   school_02_off.src = "../image/menu/school_02_off.gif";
   school_03_off.src = "../image/menu/school_03_off.gif";
   school_04_off.src = "../image/menu/school_04_off.gif";
   school_05_off.src = "../image/menu/school_05_off.gif";
   school_06_off.src = "../image/menu/school_06_off.gif";

   hospital_00_on.src = "../image/menu/hospital_00_on.gif";
   hospital_01_on.src = "../image/menu/hospital_01_on.gif";
   hospital_02_on.src = "../image/menu/hospital_02_on.gif";
   hospital_03_on.src = "../image/menu/hospital_03_on.gif";
   hospital_04_on.src = "../image/menu/hospital_04_on.gif";
   hospital_05_on.src = "../image/menu/hospital_05_on.gif";
   hospital_06_on.src = "../image/menu/hospital_06_on.gif";
   hospital_07_on.src = "../image/menu/hospital_07_on.gif";
   hospital_08_on.src = "../image/menu/hospital_08_on.gif";
   hospital_09_on.src = "../image/menu/hospital_09_on.gif";
   hospital_10_on.src = "../image/menu/hospital_10_on.gif";
   hospital_11_on.src = "../image/menu/hospital_11_on.gif";
   hospital_12_on.src = "../image/menu/hospital_12_on.gif";
   school_01_on.src = "../image/menu/school_01_on.gif";
   school_02_on.src = "../image/menu/school_02_on.gif";
   school_03_on.src = "../image/menu/school_03_on.gif";
   school_04_on.src = "../image/menu/school_04_on.gif";
   school_05_on.src = "../image/menu/school_05_on.gif";
   school_06_on.src = "../image/menu/school_06_on.gif";

   document.hospital_00.src = hospital_00_off.src;
   document.hospital_01.src = hospital_01_off.src;
   document.hospital_02.src = hospital_02_off.src;
   document.hospital_07.src = hospital_07_off.src;
   document.hospital_12.src = hospital_12_off.src;
   document.school_01.src = school_01_off.src;
   document.school_02.src = school_02_off.src;
   document.school_03.src = school_03_off.src;
   document.school_06.src = school_06_off.src;
 }

function changeImg(charImg, bstatus){
   imgObj=eval(charImg+"_" + bstatus+ ".src");
   if((document.images)&&(imgObj)){

   document.images[charImg].src=eval(charImg+"_"+bstatus+".src");
    }
  }