function changeText()
{
	if(document.getElementById('typeid_search').value == "")
	{
	 alert('select property type.');
	 return false;
	}
	
	 if(document.getElementById('priceid_search').value == "")
	{
	 alert('select price.');
	  return false;
	}
	
	 if(document.getElementById('placeid_search').value == "")
	{
	 alert('select place.');
	  return false;
	}
}