var imageFiles_85_4 = new Array();
imageFiles_85_4['0'] = new Array ('_images/85_Tru_Rock_Wall_Units.gif', '_images/85_Tru_Rock_Wall_UnitsMouseover.gif');
imageFiles_85_4['1'] = new Array ('_images/85_Mesa_Wall_Units.gif', '_images/85_Mesa_Wall_UnitsMouseover.gif');
imageFiles_85_4['2'] = new Array ('_images/85_Tumbled_Wall_Units.gif', '_images/85_Tumbled_Wall_UnitsMouseover.gif');
imageFiles_85_4['3'] = new Array ('_images/85_Concrete_Pavers.gif', '_images/85_Concrete_PaversMouseover.gif');
imageFiles_85_4['4'] = new Array ('_images/85_Permeable_Concrete_Pavers.gif', '_images/85_Permeable_Concrete_PaversMouseover.gif');
imageFiles_85_4['5'] = new Array ('_images/85_Two_Sided_Walls.gif', '_images/85_Two_Sided_WallsMouseover.gif');
imageFiles_85_4['6'] = new Array ('_images/85_Accessories.gif', '_images/85_AccessoriesMouseover.gif');
imageFiles_85_4['7'] = new Array ('_images/85_Division_32___Education.gif', '_images/85_Division_32___EducationMouseover.gif');

function image_on_85_4 (position) {
   var doc = eval("document.image85_4" + position);
   doc.src = imageFiles_85_4[position][1];
}

function image_off_85_4 (position) {
   var doc = eval("document.image85_4" + position);
   doc.src = imageFiles_85_4[position][0];
}