function checkemail(inputemail){ok="1234567890qwertyuiop[]asdfghjklzxcvbnm.@-_QWERTYUIOPASDFGHJKLZXCVBNM";for(i=0;i<inputemail.length;i++){if(ok.indexOf(inputemail.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(!inputemail.match(re)&&inputemail.match(re_two)){return(-1)}}}