var tmpArray = new Array("");
var cTerms = 0;
if (sessionScope.SelectedProduct != null & sessionScope.SelectedProduct != "") {
tmpArray[cTerms++] = "(FIELD spareProduct = "" + sessionScope.SelectedProduct +
"")";
}
if (sessionScope.Development != null & sessionScope.Development != "") {
tmpArray[cTerms++] = "(FIELD spareStatus = "*" + sessionScope.Development +
 "*")";
}
qstring = tmpArray.join(" AND ").trim();
return qstring