function emailCheck (emailStr) {
      var emailPat = /^(.+)@(.+)$/;
      var specialChars = "\\(\\)<>@,;:\\\\\\\"\\.\\[\\]";
      var validChars = "\[^\\s" + specialChars + "\]";
      var quotedUser = "(\"[^\"]*\")";
      var ipDomainPat = /^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
      var atom = validChars + '+';
      var word = "(" + atom + "|" + quotedUser + ")";
      var userPat = new RegExp("^" + word + "(\\." + word + ")*$");
      var domainPat = new RegExp("^" + atom + "(\\." + atom +")*$");
      var matchArray = emailStr.match( emailPat );
      if ( matchArray == null ) {
      alert( "Óêàæèòå êîððåêòíûé email" );
      return false;
      }
      var user = matchArray[1];
      var domain = matchArray[2];

      if ( user.match( userPat ) == null ) {
      alert( "Óêàæèòå êîððåêòíûé email" );
      return false;
      }

      var IPArray = domain.match( ipDomainPat );
      if ( IPArray != null ) {
      for ( var i = 1; i <= 4; i++ ) {
        if ( IPArray[i] > 255 ) {
          alert( "Óêàæèòå êîððåêòíûé email" );
          return false;
        }
        }
        return true;
      }

      var domainArray = domain.match( domainPat );
      if ( domainArray == null ) {
      alert( "Óêàæèòå êîððåêòíûé email" );
      return false;
      }

      var atomPat = new RegExp( atom, "g" );
      var domArr = domain.match( atomPat );
      var len = domArr.length;
      if ( domArr[domArr.length - 1].length < 2 || domArr[domArr.length - 1].length > 4 ) {
      alert( "Óêàæèòå êîððåêòíûé email" );
      return false;
      }

      if ( len < 2 ) {
      alert( "Óêàæèòå êîððåêòíûé email" );
      return false;
      }
      return true;
    }

    function CheckSelect(pSelect) {
     var myValue = pSelect.options[pSelect.selectedIndex].value;
     if (myValue == "0") pSelect.selectedIndex = 0;
    }