function validate_email($email) {
	//Validates a correctly formatted email address
    var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
    if (!filter.test($email)) {
    	// failed validation do what you want here 
		return false;
    }else{
		return true;	
	}
}
function checkEmail(obj_id){
	var email_ok;	
	var obj;
	obj = window.document.getElementById(obj_id);
	email_ok = validate_email(obj.value);
	return email_ok;
}
//validate discussion request
function validate_discussion_request(){
	var email_ok;
	var error_msg;
	email_ok = checkEmail("email");
	
	var email_error;
	//var thankyou;
	email_error = window.document.getElementById("email_error");
	//thankyou = window.document.getElementById("thankyou");
		
	if(email_ok){		
		email_error.style.display="none";
		return true;
	}else{	
		//if(thankyou.style.display !="none"){
			//thankyou.style.display="none";
		//}
		email_error.style.display="block";
		return false;
	}
}
function validate_business_for_sale(){
	var email_ok;
	var error_msg;
	email_ok = checkEmail("email_bfs");
	
	var email_error;
	//var thankyou;
	email_error = window.document.getElementById("email_error_bfs");
	//thankyou = window.document.getElementById("thankyou");
		
	if(email_ok){		
		email_error.style.display="none";
		return true;
	}else{	
		//if(thankyou.style.display !="none"){
			//thankyou.style.display="none";
		//}
		email_error.style.display="block";
		return false;
	}
}