function CheckData() {
	var problem = 'No';
	var er1 = '';
	var er2 = '';
	var er3 = '';
	var er4 = '';
	var er5 = '';
	var er6 = '';
	var er7 = '';
	var er8 = '';
	var er9 = '';
	
	if (document.register.username.value.length <= 3) {
		er1 = '* Please enter a valid USER NAME\n';
		document.register.username.focus();
		problem = 'Yes';	
	}
	if (document.register.first_name.value.length <= 1) {
		er2 = '* Please enter your FIRST NAME\n';
		document.register.first_name.focus();
		problem = 'Yes';	
	}
	if (document.register.last_name.value.length <= 1) {
		er3 = '* Please enter your LAST NAME\n';
		document.register.last_name.focus();
		problem = 'Yes';	
	}
	if (document.register.address1.value.length <= 0) {
    	er4 = '* Please enter your ADDRESS\n';
		document.register.address1.focus();
		problem = 'Yes';	
	}
	if (document.register.town.value.length <= 0) {
		er5 = '* Please enter a TOWN\n';
		document.register.town.focus();
		problem = 'Yes';	
	}
	if (document.register.county.value.length <= 0) {
		er6 = '* Please enter a COUNTY\n';
		document.register.county.focus();
		problem = 'Yes';	
	}
	if (document.register.postcode.value.length <= 0) {
		er7 = '* Please enter a valid POSTCODE\n';
		document.register.postcode.focus();
		problem = 'Yes';	
	}
	if (document.register.email.value.length <= 3) {
		er8 = '* Please enter a valid EMAIL ADDRESS\n';
		document.register.email.focus();
		problem = 'Yes';	
	}
	if (document.register.tel.value.length <= 7) {
		er9 = '* Please enter a valid TELEPHONE NUMBER\n';
		document.register.tel.focus();
		problem = 'Yes';	
	}
	if (problem == 'No') {
		return true;
	} else {
		alert ('Please complete the following actions -\n\n' + er1 + er2 + er3 + er4 + er5 + er6 + er7 + er8 + er9);
		return false; 
	}
}