function SetFocus(identifier)
{
  document.getElementById(identifier).focus();
}

function Select(identifier)
{
  SetFocus(identifier);
  document.getElementById(identifier).select();
}

function SetDefault(identifier, text)
{
  if (document.getElementById(identifier).value == text) document.getElementById(identifier).value = '';
  else if (document.getElementById(identifier).value == '') document.getElementById(identifier).value = text;
}

function Trim(string)
{
  return string.replace(/^\s*|\s*$/g,"");
}

function In_Array(item, records)
{
  var exist;
  for(i=0; i<records.length; i++) if (item == records[i]) exist = true;
  return (exist == true) ? true : false;
}

function ClearInput(Input, Focus)
{
  if (Input[0].length == 1) document.getElementById(Input).value = '';
  else for(i=0; i<Input.length; i++) document.getElementById(Input[i]).value = '';
  if (Focus.length > 0) SetFocus(Focus);
  return true;
}

function IsNotEmpty(identifier)
{
  if (Trim(document.getElementById(identifier).value) == '')
  {
    document.getElementById(identifier).value = '';
    SetFocus(identifier);
    return false;
  }
  else return true;
}

function GetBrowser()
{
  this.ver    = navigator.appVersion;
  this.agent  = navigator.userAgent;
  this.dom    = document.getElementById ? 1 : 0;
  this.opera5 = (navigator.userAgent.indexOf('Opera')>-1 && document.getElementById) ? 1 : 0;
  this.ie5    = (this.ver.indexOf('MSIE 5')>-1 && this.dom && !this.opera5) ? 1 : 0;
  this.ie6    = (this.ver.indexOf('MSIE 6')>-1 && this.dom && !this.opera5) ? 1 : 0;
  this.ie4    = (document.all && !this.dom && !this.opera5) ? 1 : 0;
  this.ie     = this.ie4 || this.ie5 || this.ie6;
  this.mac    = this.agent.indexOf('Mac') >- 1;
  this.ns6    = (this.dom && parseInt(this.ver) >= 5) ? 1 : 0;
  this.ns4    = (document.layers && !this.dom) ? 1 : 0;
  this.bw     = (this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5);
  return this;
}

function FastRedirect(link)
{
  window.location = link;
}

function DelayRedirect(link, delay)
{
  setTimeout('window.location = '+link, delay);
}