function validate_email(email) {
	valid_chars = "1234567890qwertyuiop[]asdfghjklzxcvbnm.@-_QWERTYUIOPASDFGHJKLZXCVBNM";
	for(i=0; i < email.length ;i++){
		if(valid_chars.indexOf(email.charAt(i))<0){
           		return (false);
           	}	
	}
	if (document.images) {
		regex = /(@.*@)|(\.\.)|(^\.)|(^@)|(@$)|(\.$)|(@\.)/;
		regex2 = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/;
		if (!email.match(regex) && email.match(regex2)) {
			return (-1);
		}
	}
}

function check(sform) {
	var s="Please enter your ";
        if (!validate_email(sform.email.value)){
        	alert(s+"Email Address"); sform.email.focus(); return (false);
        }
}



function launchwin(winurl,winname,winfeatures) {
	var newwin;
	newwin = window.open(winurl,winname,winfeatures);
	setTimeout('newwin.focus();',250);
}