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

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 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 SetHomepage(page, href) 
{
  a = GetBrowser();
  if (a.ie)
  {
    page.style.behavior='url(#default#homepage)'; 
    page.setHomePage(href);
  }
  else if(a.opera5) window.location.href       = '/opera-homepage.html';
  else if(a.ns6 || a.ns4) window.location.href = '/firefox-homepage.html';
  else window.location.href                    = '/homepage.html';
  return false;
}

function RedirectDelay(location, time)
{
  setTimeout('window.location = "'+location+'"', time);
}

function RedirectFast(location) 
{
  window.location = location;
}

function rollOver(name, img) 
{
  if(document.images)
    document.images[name].src = '/images/design/'+img+'.gif';
}

function AddRow() {
  for(i=1;i<40;i++) {
    if(document.getElementById('page['+i+']').style.display == 'none') {
      document.getElementById('page['+i+']').style.display = 'block';
      break;
    }
  }
}