/* 
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

function check_dest(id) {
    sid = document.getElementById('book_'+id);
    q = document.getElementById('qty_'+id);

    value = sid.options[sid.selectedIndex].value;
    qtyvalue = q.value;
    
    if(value == "" || qtyvalue == "" || isNaN(qtyvalue)) {
        alert('You must select a destination and specify a numeric quantity.');
    } else {
        eval('document.form_'+id+'.submit()');
    }
}