var domainname = "http://www.w3click.com/";
String.prototype.trim = function() {

        return this.replace(/^\s+|\s+$/g,"");
    }
function prevMonth(curMonth)
{
//	alert(curMonth);
	$("#divCalendar").hide("fast");
	$.get(domainname+"module/calendar/getMonth.php?cur=" + (curMonth-1) , function(data)
	{
		$("#divCalendar").html(data);

	}
		
	)
	$("#divCalendar").fadeIn("slow");;
}
function nextMonth(curMonth)
{
$("#divCalendar").hide("fast");
	$.get(domainname+"module/calendar/getMonth.php?cur=" + (curMonth+1) , function(data)
	{
		$("#divCalendar").html(data);
	}
		
	);
	$("#divCalendar").fadeIn("slow");;
}

function isValidEmail(email, required) {
    if (required==undefined) {   // if not specified, assume it's required
        required=true;
    }
    if (email==null) {
        if (required) {
            return false;
        }
        return true;
    }
    if (email.length==0) {  
        if (required) {
            return false;
        }
        return true;
    }
    if (! allValidChars(email)) {  // check to make sure all characters are valid
        return false;
    }
    if (email.indexOf("@") < 1) { //  must contain @, and it must not be the first character
        return false;
    } else if (email.lastIndexOf(".") <= email.indexOf("@")) {  // last dot must be after the @
        return false;
    } else if (email.indexOf("@") == email.length) {  // @ must not be the last character
        return false;
    } else if (email.indexOf("..") >=0) { // two periods in a row is not valid
	return false;
    } else if (email.indexOf(".") == email.length) {  // . must not be the last character
	return false;
    }
    return true;
}

function allValidChars(email) {
  var parsed = true;
  var validchars = "abcdefghijklmnopqrstuvwxyz0123456789@.-_";
  for (var i=0; i < email.length; i++) {
    var letter = email.charAt(i).toLowerCase();
    if (validchars.indexOf(letter) != -1)
      continue;
    parsed = false;
    break;
  }
  return parsed;
}