var imageFiles_1vd_1 = new Array();
imageFiles_1vd_1['0'] = new Array ('_images/1vd_Product_Options.gif', '_images/1vd_Product_OptionsMouseover.gif');
imageFiles_1vd_1['1'] = new Array ('_images/1vd_Block_Features.gif', '_images/1vd_Block_FeaturesMouseover.gif');
imageFiles_1vd_1['2'] = new Array ('_images/1vd_Block_Types.gif', '_images/1vd_Block_TypesMouseover.gif');
imageFiles_1vd_1['3'] = new Array ('_images/1vd_More_Precast.gif', '_images/1vd_More_PrecastMouseover.gif');
imageFiles_1vd_1['4'] = new Array ('_images/1vd_Advanced_Walls.gif', '_images/1vd_Advanced_WallsMouseover.gif');
imageFiles_1vd_1['5'] = new Array ('_images/1vd_Home.gif', '_images/1vd_HomeMouseover.gif');

function image_on_1vd_1 (position) {
   var doc = eval("document.image1vd_1" + position);
   doc.src = imageFiles_1vd_1[position][1];
}

function image_off_1vd_1 (position) {
   var doc = eval("document.image1vd_1" + position);
   doc.src = imageFiles_1vd_1[position][0];
}