var MenuName = new Array('feature_02','cost_02','reservation','qanda');

for(i in MenuName){
   var Name = MenuName[i];
   OnMenu[Name]  = new Image();
   OffMenu[Name] = new Image();
   OnMenu[Name].src  = docroot + "/feature/shared/menu_" + Name + "_here.gif"; 
   OffMenu[Name].src = docroot + "/feature/shared/menu_" + Name + ".gif";
}