function kontrola(formular)
{
  if (formular.hodnoceni.value=="-")
  {
    alert("Zadejte hodnocení!!");
	formular.hodnoceni.focus();
    return false;
  }
  else 
  		return true;
}

function setsmile(Smiley) 
{
 document.pridat.text.value =
 document.pridat.text.value + Smiley;
 document.pridat.text.focus();
}
    
function show_date_time()
{
var now=new Date();
window.status=now;
window.setTimeout("show_date_time();");
}
function showmenu()
{
return false;
}
function okno(script,w,h)
{
window.open(script,'','scrollbars=yes,resizable=yes,location=no,directories=no,status=no,menubar=no,toolbar=no,width='+w+',height='+h);
}
function play(script,w,h)
{
window.open(script,'','scrollbars=no,resizable=no,location=no,directories=no,status=no,menubar=no,toolbar=no,width='+w+',height='+h);
}
function obrazek(url)
{
opener.document.formular.foto.value=url;
window.close(this);
}
function inserturl(url,id)
{
opener.document.form.rec.value=url+id;
window.close(this);
}
function insertbold(url)
{
document.form.rec.value=url+'<b></b>';
}
function insertitalic(url)
{
document.form.rec.value=url+'<i></i>';
}
function insertunder(url)
{
document.form.rec.value=url+'<u></u>';
}
function setPointer(theRow, theAction, theDefaultColor, thePointerColor, theMarkColor)
{
    var theCells = null;

    // 1. Pointer and mark feature are disabled or the browser can't get the
    //    row -> exits
    if ((thePointerColor == '' && theMarkColor == '')
        || typeof(theRow.style) == 'undefined') {
        return false;
    }

    // 2. Gets the current row and exits if the browser can't get it
    if (typeof(document.getElementsByTagName) != 'undefined') {
        theCells = theRow.getElementsByTagName('td');
    }
    else if (typeof(theRow.cells) != 'undefined') {
        theCells = theRow.cells;
    }
    else {
        return false;
    }

    // 3. Gets the current color...
    var rowCellsCnt  = theCells.length;
    var domDetect    = null;
    var currentColor = null;
    var newColor     = null;
    // 3.1 ... with DOM compatible browsers except Opera that does not return
    //         valid values with "getAttribute"
    if (typeof(window.opera) == 'undefined'
        && typeof(theCells[0].getAttribute) != 'undefined') {
        currentColor = theCells[0].getAttribute('bgcolor');
        domDetect    = true;
    }
    // 3.2 ... with other browsers
    else {
        currentColor = theCells[0].style.backgroundColor;
        domDetect    = false;
    } // end 3

    // 4. Defines the new color
    // 4.1 Current color is the default one
    if (currentColor == '' || currentColor == null
        || currentColor.toLowerCase() == theDefaultColor.toLowerCase()) {
        if (theAction == 'over' && thePointerColor != '') {
            newColor = thePointerColor;
        }
        else if (theAction == 'click' && theMarkColor != '') {
            newColor = theMarkColor;
        }
    }
    // 4.1.2 Current color is the pointer one
    else if (currentColor.toLowerCase() == thePointerColor.toLowerCase()) {
        if (theAction == 'out') {
            newColor = theDefaultColor;
        }
        else if (theAction == 'click' && theMarkColor != '') {
            newColor = theMarkColor;
        }
    }
    // 4.1.3 Current color is the marker one
    else if (currentColor.toLowerCase() == theMarkColor.toLowerCase()) {
        if (theAction == 'click') {
            newColor = (thePointerColor != '')
                     ? thePointerColor
                     : theDefaultColor;
        }
    } // end 4

    // 5. Sets the new color...
    if (newColor) {
        var c = null;
        // 5.1 ... with DOM compatible browsers except Opera
        if (domDetect) {
            for (c = 0; c < rowCellsCnt; c++) {
                theCells[c].setAttribute('bgcolor', newColor, 0);
            } // end for
        }
        // 5.2 ... with other browsers
        else {
            for (c = 0; c < rowCellsCnt; c++) {
                theCells[c].style.backgroundColor = newColor;
            }
        }
    } // end 5

    return true;
} // end of the 'setPointer()' function