/*
	_library classes:
	$Revision: 1.1 $
*/

function textCounter(field,cntfield,maxlimit) {
	if (field.value.length > maxlimit) // if too long...trim it!
		field.value = field.value.substring(0, maxlimit);
	// otherwise, update 'characters left' counter
	else
		cntfield.value = maxlimit - field.value.length;
}

/*	TRIM SPACES	*/
function trim(str)	{
	return str.replace(/^\s*|\s*$/g,"");
}

/*	JUMP MENU	*/
function jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function quizCountDown(formName,fieldName,showIt,goTo)	{
	var myForm	= document.forms['' + formName + ''];
	if (milisec <= 0){ 
		milisec	= 9 
		seconds	-= 1 
	} 
	if (seconds <=- 1){ 
		milisec	= 0 
		seconds	+= 1 
	} else {
		milisec	-= 1 
		if (showIt == 1)	{
			myForm.elements['' + fieldName + ''].value	= seconds + "." + milisec ;
		}
		if (seconds == 0)	{
			alert('Tempo scaduto!');
			//location.href	= goTo;
			var num		= myForm.elements.length;
			//alert(num);
			for (i=0;i<num;i++)	{
				var nameF	= myForm.elements[i].name;
				if (nameF.indexOf('regQuiz') != -1)	{
					//alert('azzero il campo ' + nameF);
					myForm.elements[i].value	= 0;
				}
			}
			myForm.action	= goTo;
			myForm.submit();
		} else {
			setTimeout("quizCountDown('" + formName + "','" + fieldName + "','" + showIt + "','" + goTo + "')",100);
		}
	}
} 

/************************************

	Custom Alert Demonstration
	version 1.0
	last revision: 02.02.2005
	steve@slayeroffice.com

	Should you improve upon this source please
	let me know so that I can update the version
	hosted at slayeroffice.

	Please leave this notice in tact!
	http://slayeroffice.com/code/custom_alert/

	maurizio@more.it
	Last changes:
		added 2 more vars for the function: title & buttonText;
		now title and button can be customized too.
	For this changes, the check for "getElementById" was added in the function
	and patched for Macintosh.

************************************/
/*
if(document.getElementById) {
	window.alert = function(txt,title,buttonText) {
		createCustomAlert(txt,title,buttonText);
	}
} else {
	alertAlt(txt,title,buttonText);
}
*/

function _jsTest()	{
	var myForm	= document.testJSAlert;
	if (myForm.testJS.value == '')	{
		theAlert('Non hai inserito nulla','Attenzione!','OK');
	} else {
		theAlert('Hai inserito: ' + myForm.testJS.value + '','Bene!','OK');
	}
	myForm.testJS.value	= '';
}

function theAlert(txt,title,buttonText) {
	var sysOp	= navigator.userAgent.toLowerCase();
	//if(document.getElementById) {
	if(document.getElementById && sysOp.indexOf('mac') == -1) {
		d = document;
	
		if(d.getElementById("modalContainer")) return;
	
		mObj = d.getElementsByTagName("body")[0].appendChild(d.createElement("div"));
		mObj.id = "modalContainer";
		mObj.style.height = d.documentElement.scrollHeight + "px";
		
		alertObj = mObj.appendChild(d.createElement("div"));
		alertObj.id = "alertBox";
		if(d.all && !window.opera) alertObj.style.top = document.documentElement.scrollTop + "px";
		alertObj.style.left = (d.documentElement.scrollWidth - alertObj.offsetWidth)/2 + "px";
		alertObj.style.visiblity="visible";
	
		if (title == '')	{
			title	= 'ERRORE';
		}
		h1 = alertObj.appendChild(d.createElement("h1"));
		h1.appendChild(d.createTextNode(title));
	
		msg = alertObj.appendChild(d.createElement("p"));
		msg.appendChild(d.createTextNode(txt));
	
		if (buttonText == '')	{
			buttonText	= 'Chiudi';
		}
		btn = alertObj.appendChild(d.createElement("a"));
		btn.id = "closeBtn";
		btn.appendChild(d.createTextNode(buttonText));
		btn.href = "#";
		btn.onclick = function() { removeCustomAlert();return false; }
	} else {
		alert(txt);
	}
}

function removeCustomAlert() {
	document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer"));
}

function _changeOp(op)	{
	var myForm	= document.f2;
	myForm.pollGo.value	= op;
	//alert(myForm.pollGo.value);
	myForm.submit();
}

/***************************************
	Function Copy To ClipBoard
	http://www.krikkit.net/
***************************************/

function copy_clip(meintext){
 if (window.clipboardData) 
   {
   
   // the IE-manier
   window.clipboardData.setData("Text", meintext);
   
   // waarschijnlijk niet de beste manier om Moz/NS te detecteren;
   // het is mij echter onbekend vanaf welke versie dit precies werkt:
   }
   else if (window.netscape) 
   { 
   
   // dit is belangrijk maar staat nergens duidelijk vermeld:
   // you have to sign the code to enable this, or see notes below 
   netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');
   
   // maak een interface naar het clipboard
   var clip = Components.classes['@mozilla.org/widget/clipboard;1'].createInstance(Components.interfaces.nsIClipboard);
   if (!clip) return;
   
   // maak een transferable
   var trans = Components.classes['@mozilla.org/widget/transferable;1'].createInstance(Components.interfaces.nsITransferable);
   if (!trans) return;
   
   // specificeer wat voor soort data we op willen halen; text in dit geval
   trans.addDataFlavor('text/unicode');
   
   // om de data uit de transferable te halen hebben we 2 nieuwe objecten nodig   om het in op te slaan
   var str = new Object();
   var len = new Object();
   
   var str = Components.classes["@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString);
   
   var copytext=meintext;
   
   str.data=copytext;
   
   trans.setTransferData("text/unicode",str,copytext.length*2);
   
   var clipid=Components.interfaces.nsIClipboard;
   
   if (!clip) return false;
   
   clip.setData(trans,null,clipid.kGlobalClipboard);
   
   }
   alert("Indirizzo del file copiato negli appunti!");
   //return false;
}

/**
 * This array is used to remember mark status of rows in browse mode
 */
var marked_row = new Array;
/**
 * Sets/unsets the pointer and marker in browse mode
 *
 * @param   object    the table row
 * @param   integer  the row number
 * @param   string    the action calling this script (over, out or click)
 * @param   string    the default background color
 * @param   string    the color to use for mouseover
 * @param   string    the color to use for marking a row
 *
 * @return  boolean  whether pointer is set or not
 */
function setPointer(theRow, theRowNum, theAction, theDefaultColor, thePointerColor, theMarkColor)
{
    var theCells = null;
	//alert(theRowNum + ' - ' + theAction);

    // 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

    // 3.3 ... Opera changes colors set via HTML to rgb(r,g,b) format so fix it
    if (currentColor.indexOf("rgb") >= 0)
    {
        var rgbStr = currentColor.slice(currentColor.indexOf('(') + 1,
                                     currentColor.indexOf(')'));
        var rgbValues = rgbStr.split(",");
        currentColor = "#";
        var hexChars = "0123456789ABCDEF";
        for (var i = 0; i < 3; i++)
        {
            var v = rgbValues[i].valueOf();
            currentColor += hexChars.charAt(v/16) + hexChars.charAt(v%16);
        }
    }

    // 4. Defines the new color
    // 4.1 Current color is the default one
    if (currentColor == ''
        || currentColor.toLowerCase() == theDefaultColor.toLowerCase()) {
        if (theAction == 'over' && thePointerColor != '') {
            newColor              = thePointerColor;
        }
        else if (theAction == 'click' && theMarkColor != '') {
            newColor              = theMarkColor;
            marked_row[theRowNum] = true;
            // Garvin: deactivated onclick marking of the checkbox because it's also executed
            // when an action (like edit/delete) on a single item is performed. Then the checkbox
            // would get deactived, even though we need it activated. Maybe there is a way
            // to detect if the row was clicked, and not an item therein...
            // document.getElementById('id_rows_to_delete' + theRowNum).checked = true;
        }
    }
    // 4.1.2 Current color is the pointer one
    else if (currentColor.toLowerCase() == thePointerColor.toLowerCase()
             && (typeof(marked_row[theRowNum]) == 'undefined' || !marked_row[theRowNum])) {
        if (theAction == 'out') {
            newColor              = theDefaultColor;
        }
        else if (theAction == 'click' && theMarkColor != '') {
            newColor              = theMarkColor;
            marked_row[theRowNum] = true;
            // document.getElementById('id_rows_to_delete' + theRowNum).checked = true;
        }
    }
    // 4.1.3 Current color is the marker one
    else if (currentColor.toLowerCase() == theMarkColor.toLowerCase()) {
        if (theAction == 'click') {
            newColor              = (thePointerColor != '')
                                  ? thePointerColor
                                  : theDefaultColor;
            marked_row[theRowNum] = (typeof(marked_row[theRowNum]) == 'undefined' || !marked_row[theRowNum])
                                  ? true
                                  : null;
            // document.getElementById('id_rows_to_delete' + theRowNum).checked = false;
        }
    } // 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