function validFields(Fields)
{
	  for (j=1; j<arguments.length; j++)
	  {
		  
		  if(arguments[j].value="")
		  {
			  return false;
		  }		    	
	  }
	  
	  return true;
}

function validField(field)
{
	if (field=="")
	{
		return false;
	}
	return true;
}

function validDate(date)
{
	invalidChars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/:,;";
	
		
	for (i=0; i<invalidChars.length;i++)
	{
		badChar = invalidChars.charAt(i);
		if(date.indexOf(badChar,0) > -1)
		{
			return false;
		}
	}
	return true;
}

function validguide(bookingform)
{
	var totalcheck=0;
	if(bookingform.chinese.checked)
	{
		totalcheck=1;
	}
	
	if(bookingform.english.checked)
	{
		totalcheck=1;
	}
	
	if(bookingform.french.checked)
	{
		totalcheck=1;
	}
	
	if(bookingform.german.checked)
	{
		totalcheck=1;
	}
	
	if(bookingform.india.checked)
	{
		totalcheck=1;
	}
	
	if(bookingform.italian.checked)
	{
		totalcheck=1;
	}
	
	if(bookingform.japanese.checked)
	{
		totalcheck=1;
	}
	
	if(bookingform.korean.checked)
	{
		totalcheck=1;
	}
	
	if(bookingform.russia.checked)
	{
		totalcheck=1;
	}
	
	if(bookingform.spanish.checked)
	{
		totalcheck=1;
	}
	
	if(bookingform.thai.checked)
	{
		totalcheck=1;
	}
	
	if (totalcheck==0)
	{
		return false;
	}
	
	return true;
}

function validEmail(email)
{
	invalidChars = " /:,;";
	
	if (email=="")
	{
		return false;
	}
	
	for (i=0; i<invalidChars.length;i++)
	{
		badChar = invalidChars.charAt(i);
		if(email.indexOf(badChar,0) > -1)
		{
			return false;
		}
	}
	
	atPos = email.indexOf("@",1);
	
	if(atPos == -1)
	{
		return false ;
	}
	
	if(email.indexOf("@",atPos+1) > -1)
	{
		return false;
	}
	
	periodPos = email.indexOf(".",atPos);
	if(periodPos == -1 )
	{
		return false;
	}
	
	if(periodPos+3 > email.length)
	{
		return false;
	}
	
	return true;
}