pg = new Array();
pg[0] = "01_vin.asp";
pg[1] = "02_" + qty_outputs + "out.asp";
pg[2] = "03_" + qty_outputs + "chassis.asp";
pg[3] = "05_connectors.asp";
pg[4] = "06_thermal.asp";
pg[5] = "07_accessories.asp";
pg[6] = "08_review-save.asp";

for (i=0; i<pg.length; i++) {
    if (location.pathname.indexOf(pg[i]) > -1) {
        current_page_number = i + 1;
        next = pg[i+1];
        prev = pg[i-1];
        i = pg.length; }
} //for


if (location.pathname.indexOf("02_3out_alt.asp") > -1) {
        current_page_number = i + 1;
        next = "05_connectors.asp";
        prev = "01_vin.asp";
} //if