var bMSIE = false;
var bMSIE_ver = 3.0;
var bNetscape = false;
var bNetscape_ver = 2.0;

function browser()
{
		var ua = navigator.appVersion;
    var an = navigator.appName;    
    bMSIE = (ua.indexOf("MSIE")>=1);
    if (bMSIE)
    {        
				bMSIE_ver = 5.0;	
        if (ua.indexOf("MSIE 4.")>=1)
					bMSIE_ver = 4.0;
        if (ua.indexOf("MSIE 5.")>=1)
					bMSIE_ver = 5.0;
        if (ua.indexOf("MSIE 5.5")>=1)        
					bMSIE_ver = 5.5;
				if (ua.indexOf("MSIE 6.")>=1)
					bMSIE_ver = 6.0;
    }
    else if (an == "Netscape")
    {
        bNetscape = true;        
        bNetscape_ver = parseInt(navigator.appVersion);        
    }

}

function isEmailAddr(email)
{
  var result = false;
  var theStr = new String(email);
  var index = theStr.indexOf("@");
  if (index > 0)
  {
    var pindex = theStr.indexOf(".",index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
		result = true;
  }
  return result;
}

function validRequired(formField,fieldLabel)
{
	if (formField.value == "")
	{
		alert(fieldLabel + ' is required.');
		formField.focus();
		return false;
	}	
	return true;
}

function allDigits(str)
{
	return inValidCharSet(str,"0123456789");
}

function inValidCharSet(str,charset)
{
	for (var i=0;i<str.length;i++)
		if (charset.indexOf(str.substr(i,1))<0)
			return false;
	return true;
}

function validEmail(formField,fieldLabel,required)
{
	if (required && !validRequired(formField,fieldLabel))
		return false;
	if ( (formField.value.length < 3) || !isEmailAddr(formField.value) )
	{
		alert("Please enter a complete email address in the form: yourname@yourdomain.com");
		formField.focus();
		return false;
	}  
  return true;
}

function validNum(formField,fieldLabel,required)
{
	if (required && !validRequired(formField,fieldLabel))
		return false;  
	if (!allDigits(formField.value))
 	{
 		alert('Please enter only numeric characters for the "' + fieldLabel +'" field.');
		formField.focus();		
		return false;
	}
	return true;
}

function validInt(formField,fieldLabel,required)
{
	if (required && !validRequired(formField,fieldLabel))
		return false;  
	var num = parseInt(formField.value,10);
 	if (isNaN(num))
 	{
 		alert('Please enter only numeric characters for the "' + fieldLabel +'" field.');
		formField.focus();		
		return false;
	}	
	return true;
}

function validCurrency(formField,fieldLabel,required)
{
	if (required && !validRequired(formField,fieldLabel))
		return false;  
	if (!inValidCharSet(formField.value,"0123456789$,."))
 	{
 		alert('Please enter a number value for the "' + fieldLabel +'" field.');
		formField.focus();		
		return false;
	}
	return true;
}

function validPhone(formField,fieldLabel,required)
{
	if (required && !validRequired(formField,fieldLabel))
		return false;  
	if (!inValidCharSet(formField.value,"0123456789-() "))
 	{
 		alert('Please enter a valid phone number "' + fieldLabel +'" field.');
		formField.focus();		
		return false;
	}
	return true;
}


function validDate(formField,fieldLabel,required)
{
  var result = true;

  if (required && !validRequired(formField,fieldLabel))
    result = false;
  
   if (result)
   {
     var elems = formField.value.split("/");
     
     result = (elems.length == 3); // should be three components
     
     if (result)
     {
       var month = parseInt(elems[0],10);
        var day = parseInt(elems[1],10);
       var year = parseInt(elems[2],10);
      result = !isNaN(month) && (month > 0) && (month < 13) &&
            !isNaN(day) && (day > 0) && (day < 32) &&
            !isNaN(year) && (elems[2].length == 4);
     }
     
      if (!result)
     {
       alert('Please enter a date in the format MM/DD/YYYY for the "' + fieldLabel +'" field.');
      formField.focus();    
    }
  } 
  
  return result;
}






























































































































































































































































































































































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