function checkform(form)
{
	var val = form.URL.value;
	if (val == "" || val.length < 4)
	{
		alert ("GROK! E, aj ukucaj ili ubaci VALIDNU internet adresu u dato polje.");
		form.URL.focus();
		return false;
	}
	var found = false;

	for (var i=0;i<val.length;i++)
	{
		var chr = val.charAt(i);
		if(chr=='.')
		{
			found = true;
			break;
		}
	}
	if (found == false)
	{
		alert ("GROK! E, aj ukucaj ili ubaci VALIDNU internet adresu u dato polje.");
		form.URL.focus();
		return false;
	}
	return true;
}

function focusbox()
{
	el = $('URL');
	el.focus();
}