function setDropDown(form, selName, selVal) {
    objFrm = document.forms[form]
    if (objFrm && objFrm.elements[selName]) {
	objSel = objFrm.elements[selName];
	num = objSel.options.length;
	for (i=0; i<num; i++) {
	    if (objSel.options[i].value == selVal) {
		objSel.selectedIndex = i;
		break;
	    }
	}
    }
}