function CheckComment(){
	if($('#com_name').val()==0){
		alert('Please require name');
		$('#com_name').focus();
		return false;
	}else
	if($('#com_email').val()==0){
		alert('Please require email');
		$('#com_email').focus();
		return false;
	}else
	if($('#com_detail').val()==0){
		alert('Please require comment');
		$('#com_detail').focus();
		return false;
	}
}
function CheckSend(){
	if($('#company').val()==0){
		alert('Please require company');
		$('#company').focus();
		return false;
	}else
	if($('#email').val()==0){
		alert('Please require email');
		$('#email').focus();
		return false;
	}else
	if($('#company_type').val()==0){
		alert('Please require type of company');
		$('#company_type').focus();
		return false;
	}
}
function showMenu(txt){
	var tr = $('tr[id=tr_'+txt+']');
    tr.toggle();
}