var imageFiles_18h_1 = new Array();
imageFiles_18h_1['0'] = new Array ('_images/18h_Fuel_System.gif', '_images/18h_Fuel_SystemMouseover.gif');
imageFiles_18h_1['1'] = new Array ('_images/18h_Brake_Fluid.gif', '_images/18h_Brake_FluidMouseover.gif');
imageFiles_18h_1['2'] = new Array ('_images/18h_Air_Conditioning.gif', '_images/18h_Air_ConditioningMouseover.gif');

function image_on_18h_1 (position) {
   var doc = eval("document.image18h_1" + position);
   doc.src = imageFiles_18h_1[position][1];
}

function image_off_18h_1 (position) {
   var doc = eval("document.image18h_1" + position);
   doc.src = imageFiles_18h_1[position][0];
}