$('feedbackbtn').disable();
$("linkman").focus();
function checkfeed(){
	linkman = $F('linkman');
	company = $F('company');
	address = $F('address');
	postalcode = $F('postalcode');
	email = $F('email');
	gnum = $F('gnum');
	predate = $F('predate');
	idea = $F('idea');
	if (linkman=='')
	{
		$('linkman').setStyle({'border':'1px red solid'});
		$("feedbackbtn").disable();
		return false;
	}
	if (company == "")
	{
		$('company').setStyle({'border':'1px red solid'});
		$("feedbackbtn").disable();
		return false;
	}
	if (address == "")
	{
		$('address').setStyle({'border':'1px red solid'});
		$("feedbackbtn").disable();
		return false;
	}
	if (postalcode == "")
	{
		$('postalcode').setStyle({'border':'1px red solid'});
		$("feedbackbtn").disable();
		return false;
	}
	if (email == "")
	{
		$('email').setStyle({'border':'1px red solid'});
		$("feedbackbtn").disable();
		return false;
	}
	if (gnum == "")
	{
		$('gnum').setStyle({'border':'1px red solid'});
		$("feedbackbtn").disable();
		return false;
	}
	if (predate == "")
	{
		$('predate').setStyle({'border':'1px red solid'});
		$("feedbackbtn").disable();
		return false;
	}
	if (idea == "")
	{
		$('idea').setStyle({'border':'1px red solid'});
		$("feedbackbtn").disable();
		return false;
	}else{
		$('feedbackbtn').enable();
	}
}