ignore_arr = new Array(15);
ignore_arr[0]="a";
ignore_arr[1]="an";
ignore_arr[2]="and";
ignore_arr[3]="ab";
ignore_arr[4]="be";
ignore_arr[5]="by";
ignore_arr[6]="de";
ignore_arr[7]="is";
ignore_arr[8]="of";
ignore_arr[9]="on";
ignore_arr[10]="to";
ignore_arr[11]="that";
ignore_arr[12]="this";
ignore_arr[13]="the";
ignore_arr[14]="vol";