// riconoscimento browser
browser = navigator.appName;
browserNum = parseInt(navigator.appVersion);

if ((browser == "Netscape") && (browserNum < 5))
{
	// Netscape 4
	layerRef = "document.layers['";
	endLayerRef = "']";
	styleRef = "";
}
else if ((browser == "Netscape") && (browserNum >= 5))
{
	// Netscape 6
	layerRef = "document.getElementById('";
	styleRef = ".style";
	endLayerRef = "')";
}
else
{
	// Explorer
	layerRef = "document.all['";
	endLayerRef = "']";
	styleRef = ".style";
}

// funzioni livelli tools

vecchioLayer = "none";

function showMenu(layerName)
{
	eval(layerRef + layerName + endLayerRef + styleRef + ".visibility = 'visible'");
	eval(layerRef + "vuoto" + endLayerRef + styleRef + ".visibility = 'visible'");
	
	if (vecchioLayer != "none")
	{
		eval(layerRef + vecchioLayer + endLayerRef + styleRef + ".visibility = 'hidden'");
	}
	
	if (vecchioLayer == layerName)
	{
		vecchioLayer = "none";
	}
	else
	{
		vecchioLayer = layerName;
	}
	
}

function hideMenu()
{
	eval(layerRef + "liv01" + endLayerRef + styleRef + ".visibility = 'hidden'");
	eval(layerRef + "liv02" + endLayerRef + styleRef + ".visibility = 'hidden'");
	eval(layerRef + "liv03" + endLayerRef + styleRef + ".visibility = 'hidden'");
	eval(layerRef + "liv04" + endLayerRef + styleRef + ".visibility = 'hidden'");
	eval(layerRef + "vuoto" + endLayerRef + styleRef + ".visibility = 'hidden'");	
	
}



// rollover   

function nbsp() {document.write("&nbsp;");}
function copy() {document.write("&copy;");}

var iversion = -1;

function version() {
        if (iversion != -1) return iversion;
        if((navigator.appName.charAt(0)=="N")||(navigator.appName.charAt(0)=="M")){
                if (parseInt(navigator.appVersion.charAt(0),10) >= 3) 
                    iversion = 3;
        }
        return iversion;
}

if (iversion) {
        menu01on = new Image();
        menu01on.src = "images/tit_prescrizione_over.gif";
        menu01off = new Image();
        menu01off.src = "images/tit_prescrizione.gif";
				menu02on = new Image();
        menu02on.src = "images/tit_newsletter_over.gif";
        menu02off = new Image();
        menu02off.src = "images/tit_newsletter.gif";
        menu03on = new Image();
        menu03on.src = "images/tit_bacheca_over.gif";
        menu03off = new Image();
        menu03off.src = "images/tit_bacheca.gif";				
        menu04on = new Image();
        menu04on.src = "images/tit_visita_over.gif";
        menu04off = new Image();
        menu04off.src = "images/tit_visita.gif";
				
				
				tools01on = new Image();
        tools01on.src = "images/tools_segreteria.gif";
        tools01off = new Image();
        tools01off.src = "images/tools_1.gif";
        
				tools02on = new Image();
        tools02on.src = "images/tools_docenti.gif";
        tools02off = new Image();
        tools02off.src = "images/tools_2.gif";
        
        tools03on = new Image();
        tools03on.src = "images/tools_collaboratori.gif";
        tools03off = new Image();
        tools03off.src = "images/tools_5.gif";
        
				tools04on = new Image();
        tools04on.src = "images/tools_aula.gif";
        tools04off = new Image();
        tools04off.src = "images/tools_3.gif";
        
				tools05on = new Image();
        tools05on.src = "images/tools_contatti.gif";
        tools05off = new Image();
        tools05off.src = "images/tools_4.gif";
				


		

}

function rollon(imgName) {
        if (iversion) {
        imgOn = eval(imgName + "on.src");
        document[imgName].src = imgOn;
        }
}
function rolloff(imgName) {
        if (iversion) {
		imgOff = eval(imgName + "off.src");
        document[imgName].src = imgOff;
        }
}


// fine rollover 

function rollTool(status){
	var lDiv = parseInt(document.getElementById("toolsH3").style.left);
	var id = "toolsImg";
	var iMax = 5;
	if(status){
		for(i=0; i<iMax; i++){
			document.getElementById(id + i).style.marginLeft = "-125px";
		}
		document.getElementById("toolsH3").style.left = lDiv + 125;
	}else{	
		for(i=0;i<iMax;i++){
			document.getElementById(id + i).style.marginLeft = 0;
		}
		document.getElementById("toolsH3").style.left = lDiv - 125;
	}
}



// posizione layer tools

function riposiziona() {
if (document.getElementById("toolsH3")){
	document.getElementById('toolsH3').style.left = [Math.round(document.body.clientWidth) + 620] / 2 + 125;
	document.getElementById('toolsH3').style.top = 237;
}else{
//netscape 4

    if (document.layers){
       document.layers['tools'].pageX = [Math.round(window.innerWidth) + 620] / 2;
       document.layers['tools'].pageY = 237;
   }
    
//explorer		
	 else if (document.all) {		
		document.all['tools'].style.posLeft = [Math.round(document.body.clientWidth) + 620] / 2;
        document.all['tools'].style.posTop = 237;        
    }
//firefox e netscape 6
		else if (document.getElementById) {
				document.getElementById('tools').style.left = [Math.round(document.body.clientWidth) + 620] / 2;
				document.getElementById('tools').style.top = 237;
    }    
	setTimeout('riposiziona()',100);

}

}