function validateForm(){
	trueFalse = true;
	
	if(document.getElementById('txtName').value == ''){
		alert('Please enter your name');
		trueFalse = false;
		document.getElementById('txtName').focus();
	}else if(document.getElementById('txtCompany').value == ''){
		alert('Please enter your company');
		trueFalse = false;
		document.getElementById('txtCompany').focus();
	}else if(document.getElementById('txtEmail').value == ''){
		alert('Please enter your email address');
		trueFalse = false;
		document.getElementById('txtEmail').focus();
	}else if(IsEmail(document.getElementById('txtEmail').value) == false){
		alert('Please enter a valid email address');
		trueFalse = false;
		document.getElementById('txtEmail').focus();
		document.getElementById('txtEmail').select();
	}
	
	return trueFalse;
}

function IsEmail(entry){ 
	var rex= /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,5})(\]?)$/; 
	return rex.test(entry)
}