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 isPhoneNumber(s) 
//{
//     // Check for correct phone number
//     //s.replace(/[\(\)\.\-\s,]/g, "");
//     //var n = s.value.replace(/[^\d]/g,'');
//     var n = s.replace(/[^\d]/g,'');
//     if (n.length != 10) {
//          return false;
//     }
//
//return true;
//}

function isPhoneNumber(phonenumber) 
{
	if((phonenumber.match(/^[ ]*[(]{0,1}[ ]*[0-9]{3,3}[ ]*[)]{0,1}[-]{0,1}[ ]*[0-9]{3,3}[ ]*[-]{0,1}[ ]*[0-9]{4,4}[ ]*$/)==null)){
		return false;
	}
	return true; 
}