<!--
function showArticle(id,offset,owner)
{
	window.open("artykul.php?id="+id+"&o="+offset+"&own="+owner, "show_article",
	"width=800,height=400,location=no,toolbar=no,status=yes,scrollbars=yes,resizable=yes");
}
//--------------------------------------------------------------------------------------
function CheckYear(y)
{
	d = new Date();
	if(y.length != 4 || y > d.getYear() || y < 1900) 
		return false;
	return true;
}
//--------------------------------------------------------------------------------------
function CheckDate(d, m, y)
{
	if(!CheckYear(y)) return false;
	if(m < 1 || m > 12) return false;
	days = new Array(31,28,31,30,31,30,31,31,30,31,30,31);
	if(!(y % 4))
	{
		days[1] = 29;
		if(!(y % 100) && (y % 400))
		{
			days[1] = 28;
		}
	}
	if(d < 1 || d > days[m-1]) return false;
	return true;
}
//--------------------------------------------------------------------------------------
function isFloat(v)
{
	vn = Number(v);
	if(vn.toString() == "NaN")
		return false;
	return true;
}
-->