// common.js

    var returnVal;
    var focusSet;
    var errMsg;
    var missingFields;

/*************************************************************************************************/
function validateemail (emailStr) {
var emailPat=/^(.+)@(.+)$/
var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
var validChars="\[^\\s" + specialChars + "\]"
var quotedUser="(\"[^\"]*\")"
var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
var atom=validChars + '+'
var word="(" + atom + "|" + quotedUser + ")"
var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
var matchArray=emailStr.match(emailPat)
if (matchArray==null)
 return false;
var user=matchArray[1];
var domain=matchArray[2];
if (user.match(userPat)==null)
    return false;
var IPArray=domain.match(ipDomainPat)
if (IPArray!=null) {
  for (var i=1;i<=4;i++)
  {
    if (IPArray[i]>255)
      return false;
  }
  return true;
}
var domainArray=domain.match(domainPat)
if (domainArray==null)
    return false
var atomPat=new RegExp(atom,"g")
var domArr=domain.match(atomPat)
var len=domArr.length
if (domArr[domArr.length-1].length<2 ||
    domArr[domArr.length-1].length>4)
   return false
if (len<2)
   return false
return true;
}

/*************************************************************************************************/
function fieldFocus(fieldName)
{
    if (!focusSet) {
        fieldName.focus();
        focusSet = true;
    }
}

/*************************************************************************************************/
function initChecks()
{
    errMsg = "";
    missingFields = "";
    focusSet = false;
    returnVal = true;
}

/*************************************************************************************************/
function checkPresent(fieldName, fieldPrompt)
{
    if (fieldName.type == "text" || fieldName.type == "password" || fieldName.type == "textarea" || fieldName.type == "file") {
        if (fieldName.value.length == 0) {
            missingFields = missingFields + "\n" + fieldPrompt;
            fieldFocus(fieldName);
        }
    } else if (fieldName.type == "select-one") {
        if (fieldName.selectedIndex == 0) {
            missingFields = missingFields + "\n" + fieldPrompt;
            fieldFocus(fieldName);
        }
    } else if (fieldName.type == "checkbox") {
        if (fieldName.checked == false) {
            missingFields = missingFields + "\n" + fieldPrompt;
            fieldFocus(fieldName);
        }
    }
}

/*************************************************************************************************/
function newErrMsg(message)
{
    if (errMsg.length > 0) {
        errMsg = errMsg + "\n\n" + message;
    } else {
        errMsg = message;
    }
}

/*************************************************************************************************/
function finiChecks()
{
    var alertMsg = "";
    if (missingFields.length > 0) {
        alertMsg = "Please enter the following field(s):\n" + missingFields;
    }
    if (errMsg.length > 0) {
        if (alertMsg.length > 0) {
            alertMsg = alertMsg + "\n\n" + errMsg;
        } else {
            alertMsg = errMsg;
        }
    }
    if (alertMsg.length > 0) {
        alert(alertMsg);
        returnVal = false;
    }
}