// JavaScript Document
<!--
function valid(email) {
		var str = document.getElementById(email).value;
		var field = document.getElementById(email);
	
	  if (window.RegExp) {
		var reg1str = "(@.*@)|(\\.\\.)|(@\\.)|(\\.@)|(^\\.)";
		var reg2str = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$";
		var reg1 = new RegExp(reg1str);
		var reg2 = new RegExp(reg2str);
		if (!reg1.test(str) && reg2.test(str)) {
		  return true;
		}
		field.focus();
		field.select();
		return false;
	  } else {
		if(str.indexOf("@") >= 0)
		  return true;
		field.focus();
		field.select();
		return false;
	  }
	}
//-->