function isEmail(s)
{
// 2009/3/4
//	var rege = /^[-\w-\.]+@\w+\.(\w+\.)*\w{2,3}$/;
	var rege =/^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;
	
	if( rege.test(s))
    	return true; 
   	return false; 
}

function isNumber(s)
{   
  var regu = "^[0-9]+$";

  var re = new RegExp(regu);

  if(re.test(s))
  {
    return true;
  }
  return false;
}
function changeLocale()
{
	var obj = document.getElementById("currentlocale");
	if( obj )
	{
		var el = obj;
		var left=el.offsetLeft;
		while ((el=el.offsetParent) != null) { left += el.offsetLeft; }

		el = obj;
		var top=el.offsetTop;
		while((el=el.offsetParent) != null) { top += el.offsetTop; }
		top += 16;

		var obj = document.getElementById("changelocale");
		if( obj )
		{
		obj.style.zindex =100;
			obj.style.visibility = "visible";
			obj.style.left = left -100+"px";
			obj.style.top = top +"px";
		}
			
	}	
}
function hideChangeLocale()
{
	var obj = document.getElementById("changelocale");
	if( obj && obj.style.visibility == "visible" )
		obj.style.visibility = "hidden";
}