var searchBoxDefault = "podstawa nazwy";
var searchBox2Default = "dodatkowe oznaczenie";

function checkBeforeSubmit()
{
	sbcurr = $('#searchElementForm #searchBox').val();
	sb2curr = $('#searchElementForm #searchBox2').val();
	
	
	if(sbcurr == searchBoxDefault) 
	{
		$('#searchElementForm #searchBox').val('');
	}
	if(sb2curr == searchBox2Default) 
	{
		$('#searchElementForm #searchBox2').val('');
	}
	
	return true;
}