function CheckMultiple31(frm, name) {
                                                               for (var i=0; i < frm.length; i++)
                                                               {
                                                                              fldObj = frm.elements[i];
                                                                              fldId = fldObj.id;
                                                                              if (fldId) {
                                                                                              var fieldnamecheck=fldObj.id.indexOf(name);
                                                                                              if (fieldnamecheck != -1) {
                                                                                                              if (fldObj.checked) {
                                                                                                                             return true;
                                                                                                              }
                                                                                              }
                                                                              }
                                                               }
                                                               return false;
                                               }
                               function CheckForm31(f) {
                                               var email_re = /[a-z0-9!#$%&'*+\/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+\/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?/i;
                                               if (!email_re.test(f.email.value)) {
                                                               alert("Prosimo vnesite vaše ime.");
                                                               f.email.focus();
                                                               return false;
                                               }
                               
                                               var fname = "CustomFields_2_31";
                                               var fld = document.getElementById(fname);
                                               if (fld.value == "") {
                                                               alert("Prosimo vnesite vaše ime.");
                                                               fld.focus();
                                                               return false;
                                               }
                               
                                                               return true;
                                               }