var detect = navigator.userAgent.toLowerCase();

var browser = (detect.indexOf('safari') + 1) ? browser = "Safari" : "not Safari";
var os = ( navigator.platform.toLowerCase() == 'macppc' ) ? "Mac" : "not Mac";














function get_text(form, element_name)
{
	if (document.forms[form][element_name])
	{
		return trim_whitespace(document.forms[form][element_name].value);
	}
	else
	{
		return null;
	}
}

function trim_whitespace(text)
{
	while (text.substring(0,1)==' ')
	{
		text = text.substring(1, text.length);
	}
	while (text.substring(text.length-1, text.length)==' ')
	{
		text = text.substring(0,text.length-1);
	}
	return text;
}

function check_donation()
{
	var form = 'donation-form';
	var f = document.forms[form];
	var err = 0;
	var errq = 0;
	document.getElementById('err').innerHTML = '';

	document.getElementById('l_forename').style.color = '#505050';
	document.getElementById('l_surname').style.color = '#505050';
	document.getElementById('l_postcode').style.color = '#505050';
	document.getElementById('l_tick').style.color = '#505050';
	document.getElementById('l_signature').style.color = '#505050';
	document.getElementById('l_date').style.color = '#505050';
	document.getElementById('l_address').style.color = '#505050';

	if ( !document.forms[form]['tick'].checked )
	{
		document.getElementById('l_tick').style.color = 'red';
		err = 1
	}
	if (get_text(form, 'forename')=='')
	{
		document.getElementById('l_forename').style.color = 'red';
		err = 1
	}
	if (get_text(form, 'surname')=='')
	{
		document.getElementById('l_surname').style.color = 'red';
		err = 1
	}
	if (get_text(form, 'postcode')=='')
	{
		document.getElementById('l_postcode').style.color = 'red';
		err = 1
	}
	if (get_text(form, 'signature')=='')
	{
		document.getElementById('l_signature').style.color = 'red';
		err = 1
	}
	if (get_text(form, 'date')=='')
	{
		document.getElementById('l_date').style.color = 'red';
		err = 1
	}
	if (get_text(form, 'address')=='')
	{
		document.getElementById('l_address').style.color = 'red';
		err = 1
	}

	if (err==1)
	{
		document.getElementById('err').innerHTML = '<br /><br />Please complete all fields!';
	}
	else
	{
		document.getElementById('err').innerHTML = '<br /><br />Sending order information...';
		f.submit();
	}
}