/*__________________________________________________*
|						    |
|						    |
|	binary vein digital media 		    |
|		form javascript			    |
|			validation and calculation  |
|		     		2004		    |
|*__________________________________________________*/
function checkEmail(emailaddress) {
	var errormsg="";
	if (emailaddress == "") {
   		errormsg = "No email address supplied.";
	}else{
		var emailFilter=/^.+@.+\..{2,3}$/;
    		if (!(emailFilter.test(emailaddress))) { 
       			errormsg = "Invalid email - an email address must be in the following format: name@domain.com";
    		}else {
			//test email for illegal characters
       			var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/;
       			if (emailaddress.match(illegalChars)) {
       			errormsg = "Invalid email - email address contains illegal characters";
       			}
    		}
    	}
    	
    	if (errormsg != "")
    	{
    		alert(errormsg);
    		return false;
    	}
	else
	{
		alert("Thank you. You have successfully subscribed to www.thai-fine-art.com");
		return true;
	}     
}