function check_keyword()
{
	if(document.all.searchText.value == "")
	{
		alert("ΗλΟΘΚδΘλΉΨΌό΄Κ");
		document.all.searchText.focus();
		window.event.returnValue = false;
	}
	else
	{
		window.event.returnValue = true;
	}
}