function checkleform() {
				if(document.registerform.company_name.value == '') {
					alert("Please enter your company name");
					document.registerform.company_name.focus();
					return false;
				}
				if(document.registerform.firstname.value == '') {
					alert("Please enter your first name");
					document.registerform.firstname.focus();
					return false;
				}
				if(document.registerform.lastname.value == '') {
					alert("Please enter your surname");
					document.registerform.lastname.focus();
					return false;
				}
				if(document.registerform.position.value == '') {
					alert("Please enter your position in the company");
					document.registerform.position.focus();
					return false;
				}
				if(document.registerform.vat_number.value == '') {
					alert("Please enter your company VAT number");
					document.registerform.vat_number.focus();
					return false;
				}
				if(document.registerform.email.value == '') {
					alert("Please enter your email address");
					document.registerform.position.focus();
					return false;
				}
				if(document.registerform.password1.value == '') {
					alert("Please enter your desired password");
					document.registerform.password1.focus();
					return false;
				}
				if(document.registerform.password2.value == '') {
					alert("Please confirm your password");
					document.registerform.password2.focus();
					return false;
				}
				if(document.registerform.password1.value != document.registerform.password2.value) {
					alert("Passwords do not match");
					document.registerform.password1.value = '';
					document.registerform.password2.value = '';
					document.registerform.password1.focus();	
					return false;			
				}
				if(document.registerform.address1.value == '') {
					alert("Please enter the first line of your address");
					document.registerform.address1.focus();
					return false;
				}
				if(document.registerform.town.value == '') {
					alert("Please enter your town");
					document.registerform.town.focus();
					return false;
				}
				if(document.registerform.county.value == '') {
					alert("Please enter your county");
					document.registerform.county.focus();
					return false;
				}
				if(document.registerform.postcode.value == '') {
					alert("Please enter your postcode");
					document.registerform.postcode.focus();
					return false;
				}
				if(document.registerform.telephone.value == '') {
					alert("Please enter your home telephone number");
					document.registerform.telephone.focus();
					return false;
				}
				var s = document.registerform.telephone.value.replace(' ', '');
				for (i = 0; i < s.length; i++) {   
					var c = s.charAt(i);
					if ((c < "0") || (c > "9")) {
						alert("Please enter a valid phone number.");
						return false;
					}
				}
				if(document.registerform.website_url.value == '') {
					alert("Please enter your website url.");
					document.registerform.website_url.focus();
					return false;				
				}
				if(document.registerform.wherefound.value == '') {
					alert("Please select where you found us.");
					return false;
				}
				return true;
			}