function new_win(url_add,jmeno)
	{
	window.open(url_add,jmeno,'resizable=1, menubar=1, scrollbars=1, location=1, status=1, titlebar=1, toolbar=1');
	}
function open_win(url_add,jmeno)
	{
	window.open(url_add,jmeno,'resizable=1, top=0, left=0, menubar=0, scrollbars=1, status=0, titlebar=0, toolbar=0, fullscreen');
	}
function on(objekt,ret)
	{
	objekt.style.backgroundColor = '#500';
	if (objekt.value=='')
   		{
		objekt.style.color='#faa';
		objekt.value=ret;
		}
	}
function off(objekt,ret) {
	objekt.style.backgroundColor = '#000';
	if (((objekt.value=="") && (!ret=='')) || (objekt.value=="@") || (objekt.value=="http://"))
		{
		objekt.style.color='#f88';
		objekt.value='';
		}
	}
function JSL(url, jmeno, w, h)
	{
	popupWin = window.open(url, jmeno, 'resizable=1,top=20,left=20,menubar=0,scrollbars=1,width=' + w + ',height=' + h);
	}
function remove_con(o)
	{
	o.value = "";
	}
function potvrzeni(keci)
	{
	ano = window.confirm(keci);
	return (ano)
	}