var active_page=(location.href).substring((location.href).lastIndexOf("/")+1);  // pagina attiva

var Npag = 1;
var TotPag = 0;
var dy = 11*20; //11 righe
//var dy = 380; // DIMENSIONE IN PX DELLA PAG
var top_text = 0; //pos iniz layer

function set_page() {

	document.getElementById('text_div').style.clip ='rect('+(Npag-1)*dy+', '+400+','+(Npag*dy)+',0)';
	document.getElementById('text_div').style.top = -1*dy*(Npag-1)+ top_text+10;
	  // if (document.layers) {
	
			//document.layers['text_div']clip.top = (Npag-1)*dy;
			//document.layers['text_div']clip.right += dy;
			//document.layers['text_div']clip.bottom +=Npag*dy;
			//document.layers['text_div']clip.left += dy;
		 //document.all.text_div.style.clip = 'rect('+(Npag-1)*dy+', '+400+','+(Npag*dy)+',0)';
		 //document.all.text_div.style.top = -1*dy*(Npag-1)+ top_text+10;
	//	} else
		/**/

	if (document.all) {
		TotPag = parseInt(document.all.text_div.clientHeight/dy+(document.all.text_div.clientHeight%dy!=0?1:0));
		document.all.text_div.style.clip = 'rect('+(Npag-1)*dy+', '+400+','+(Npag*dy)+',0)';
		document.all.text_div.style.top = -1*dy*(Npag-1)+ top_text+10;
		if (active_page !="collegamenti.htm") document.getElementById('pag_div').innerHTML="<b>"+Npag+" / "+TotPag+"</b>";
	}
	else {
		//TotPag = parseInt(document.getElementById('text_div').height/dy+(document.getElementById('text_div').height%dy!=0?1:0));		

		document.getElementById('text_div').style.clip ='rect('+(Npag-1)*dy+', '+400+','+(Npag*dy)+',0)';
		document.getElementById('text_div').style.top = -1*dy*(Npag-1)+ top_text+10;
		if (active_page !="collegamenti.htm") pag_div.innerHTML="<b>pagina "+Npag+"</b>";
	}
}

function goto_page(page) {
	Npag = page;
	set_page();
}
function prev_page() {
	//TotPag=parseInt(document.all?document.all.text_div.clientHeight/dy+(document.all.text_div.clientHeight%dy!=0?1:0):0);
	if(Npag>1) Npag--;
	set_page();
}

function next_page() {
	//TotPag=parseInt(document.all?document.all.text_div.clientHeight/dy+(document.all.text_div.clientHeight%dy!=0?1:0):0);
	if(Npag<TotPag) Npag++;
	set_page();
}
function start_page() {
	TotPag=parseInt(document.all?document.all.text_div.clientHeight/dy+(document.all.text_div.clientHeight%dy!=0?1:0):0);
	Npag=1;
	set_page();
}

function pdf() {
winx=window.open();
location.href=active_page;
winx.location.href=active_page.replace('.htm','.pdf')
}