selval = new Array(23);
selval[0] = "pue1.htm";
selval[1] = "pue2.htm";
selval[2] = "pue3.htm";
selval[3] = "pue4.htm";
selval[4] = "pue5.htm";
selval[5] = "pue6.htm";
selval[6] = "pue7.htm";
selval[7] = "pue8.htm";
selval[8] = "pue9.htm";
selval[9] = "pue10.htm";
selval[10] = "pue11.htm";
selval[11] = "pue12.htm";
selval[12] = "chl1.htm";
selval[13] = "chl2.htm";
selval[14] = "chl3.htm";
selval[15] = "chl4.htm";
selval[16] = "chl5.htm";
selval[17] = "chl6.htm";
selval[18] = "tnz1.htm";
selval[19] = "tnz2.htm";
selval[20] = "act1.htm";
selval[21] = "act2.htm";
selval[22] = "../pue.htm";

function gonext(idx)
{   var ix1 = idx;
    if (ix1 < 0) {ix1 = document.selform.select1.selectedIndex;}
    top.location = selval[ix1];
}