function validateEmail(addr,man,db) 
	{
	if (addr == '' && man) 
	{
	  if (db) alert('Please enter a valid email address');
	  return false;
	}
		                                
	var invalidChars = '\/\'\\ ";:?!()[]\{\}^|&';
		                                
	for (i=0; i<invalidChars.length; i++) 
	{
	  if (addr.indexOf(invalidChars.charAt(i),0) > -1) 
	  {
	    if (db) alert('Email address contains invalid characters');
	      return false;
	  }
	}
		                                
	for (i=0; i<addr.length; i++) 
	{
	  if (addr.charCodeAt(i)>127) 
	  {
	    if (db) alert("Email address contains non ascii characters.");
	      return false;
	  }
	}

	var atPos = addr.indexOf('@',0);
		                                
	if (atPos == -1) 
	{
	  if (db) alert('Email address must contain an @');
	    return false;
	}
	if (atPos == 0) 
	{
	  if (db) alert('Email address must not start with @');
	    return false;
	}
	if (addr.indexOf('@', atPos + 1) > - 1) 
	{
	  if (db) alert('Email address must contain only one @');
	    return false;
	}

	if (addr.indexOf('.', atPos) == -1) 
	{
	  if (db) alert('Email address must contain a period in the domain name');
	    return false;
	}
	if (addr.indexOf('@.',0) != -1) 
	{
	  if (db) alert('Period must not immediately follow @ in email address');
	    return false;
	}
	if (addr.indexOf('.@',0) != -1)
	{
	  if (db) alert('Period must not immediately precede @ in email address');
	    return false;
	}
	if (addr.indexOf('..',0) != -1) 
	{
	  if (db) alert('Two periods must not be adjacent in email address');
	    return false;
	}

	var suffix = addr.substring(addr.lastIndexOf('.')+1);
	if (suffix.length != 2 && suffix != 'com' && suffix != 'net' && suffix != 'org' && suffix != 'edu' && suffix != 'int' && suffix != 'mil' && suffix != 'gov' & suffix != 'arpa' && suffix != 'biz' && suffix != 'aero' && suffix != 'name' && suffix != 'coop' && suffix != 'info' && 		suffix != 		'pro' && suffix != 'museum') 
	{
	  if (db) alert('Invalid primary domain in email address');
	    return false;
	}
	return true;
	}    

function validateform()
{
    var error = '';

	if (document.contactform.enquiry.value == ''){
		error = 'Please enter your order enquiry';
		document.getElementById('enquiry').className='errorformtext';
		document.contactform.enquiry.focus();
	}
	else
	{   
		document.getElementById('enquiry').className='inputFields';
	}
	
	if (document.contactform.telephone.value == ''){
		error = 'Please enter your telephone number';
		document.getElementById('telephone').className='errorformtext';
		document.contactform.telephone.focus();
	}
	else
	{
		document.getElementById('telephone').className='inputFields';
	}
	
	if (!validateEmail(document.contactform.email.value,1,0)){
		error = 'Please enter a valid email address';
		document.getElementById('email').className='errorformtext';
		document.contactform.email.focus();
	}
	else
	{
		document.getElementById('email').className='inputFields';
	}
	
	if (document.contactform.name.value == ''){
		error = 'Please enter your name';
		document.getElementById('name').className='errorformtext';
		document.contactform.name.focus();
	}
	else
	{
		document.getElementById('name').className='inputFields';
	}
	
	if (document.contactform.companyname.value == ''){
		error = 'Please enter your company name';
		document.getElementById('companyname').className='errorformtext';
		document.contactform.companyname.focus();
	}
	else
	{
		document.getElementById('companyname').className='inputFields';
	}
	
	if (error == '')
	{
		return true;
	}
	else
	{
		alert(error);
		return false;
	}
}