function pickstyle(whichstyle) {
  var expireDate = new Date()
  var expstring=expireDate.setDate(expireDate.getDate()+30)

  document.cookie = "litejazzstyle=" + whichstyle + "; expires="+expireDate.toGMTString()
}
function validate_required(field,alerttxt)
{
with (field)
  {
  if (value==null||value=="")
    {
    alert(alerttxt);return false;
    }
  else
    {
    return true;
    }
  }
}

function validate_form(thisform)
{
with (thisform)
  {
  if (validate_required(fname,"Firstname is required!")==false)
    {fname.focus();return false;}
  else if (validate_required(lname,"Last Name is required!")==false)
    {lname.focus();return false;}
  else if (validate_required(addr1,"Address Line 1 is required!")==false)
    {addr1.focus();return false;}
  else if (echeck(email1.value)==false ) 
    { 
      alert('Please enter a valid Email Address.')
      email1.focus();return false;}
  else if ((email1.value) !== (email2.value) ) 
    { 
      alert('Email Addresses not equal.')
      email1.focus();return false;}
  }
}

function echeck(str) {

  var at="@"
  var dot="."
  var lat=str.indexOf(at)
  var lstr=str.length
  var ldot=str.indexOf(dot)
  if (str.indexOf(at)==-1){
     return false
  }

  if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
     return false
  }
  if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
      return false
  }
  if (str.indexOf(at,(lat+1))!=-1){
      return false
   }
  if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
      return false
  }
  if (str.indexOf(dot,(lat+2))==-1){
      return false
  }
  if (str.indexOf(" ")!=-1){
      return false
  }
  return true					
}