function check_email(e) {
		ok = "1234567890qwertyuiop[]asdfghjklzxcvbnm.@-_QWERTYUIOPASDFGHJKLZXCVBNM";

		for(i=0; i < e.length ;i++){
			if(ok.indexOf(e.charAt(i))<0){ 
				return (false);
			}	
		} 

		if (document.images) {
			re = /(@.*@)|(\.\.)|(^\.)|(^@)|(@$)|(\.$)|(@\.)/;
			re_two = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/;
			if (!e.match(re) && e.match(re_two)) {
			return (-1);		
			} 
		}
	}
	
	function check_form(f) {
		if (f.inputEmail.value == "" || f.inputEmail.value == "Your email...") {
			alert("Please specify an email address");
			return false;
		} else if (!check_email(f.inputEmail.value)){
			alert("The Email address "+f.inputEmail.value+" does not appear to be valid");
			return false;
		} else {
				return true;
		}
	}