function CheckData() {
		var problem = 'No';
		if (document.sem_form.name.value.length <= 0) {
			alert ("Enter your name.");
			//document.sem_form.name.value = "*** First Name";
			document.sem_form.name.focus();
			problem = 'Yes';	
		}
		
		if (document.sem_form.email.value.length <= 0) {
			alert ("Enter your email address.");
			//document.sem_form.email.value = "*** Email";
			document.sem_form.email.focus();
			problem = 'Yes';	
		}

		if (problem == 'No') {
			return true;
		} else { 
			return false; 
		}
	}