function getPageSize(){
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}


	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}

function getPageScroll(){

	var yScroll;

	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
	} else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
	}

	arrayPageScroll = new Array('',yScroll) 
	return arrayPageScroll;
}


	function view_popup (id, id2, id3){

		var tabella = document.getElementById(id2);  //da qui prelevo i dati per il nuovo DIV
		var popup = document.getElementById(id);   // DIV che crea lo sfondo sfumato
		var container = document.getElementById(id3);  // DIV posizionato al centro della pagina ...a cui appendo il nuovo DIV 
		// var objBody = document.getElementsByTagName("body").item(0);

		var elemento = document.createElement("div");  // elemento che rappresenta il nuovo DIV 
													   // (introdotto x gestire problemi con IE)

		container.style.display = 'block';

		elemento.setAttribute('id','popup2');
		elemento.style.top = '0';
		elemento.style.left = '0';
		elemento.style.width = '420';
		elemento.style.height = '433';
		elemento.style.margin = '0';
		elemento.style.padding = '0';
		elemento.style.display = 'block';
		elemento.style.position = 'absolute';
		elemento.style.zIndex='9999';
		elemento.innerHTML = tabella.innerHTML;

		container.appendChild(elemento);

		// center lightbox and make sure that the top and left values are not negative
		// and the image placed outside the viewport
		var arrayPageSize = getPageSize();
		var arrayPageScroll = getPageScroll();

		popup.style.height = (arrayPageSize[1] + 'px');
		popup.style.display = 'block';
		
		
		// Hide select boxes as they will 'peek' through the image in IE
		selects = document.getElementsByTagName("select");
        for (i = 0; i != selects.length; i++) {
                selects[i].style.visibility = "hidden";
        }
		
	}


function hide_popup (id1, id2){
		var popup1 = document.getElementById(id1);  // DIV con lo sfondo
		popup1.style.display = 'none';
		var popup2 = document.getElementById(id2); // DIV con il contenuto da visualizzare
		popup2.style.display = 'none';

	// make select boxes visible
	selects = document.getElementsByTagName("select");
    for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = "visible";
	}

}


function show_hide_toggle(id){

	var elemento = document.getElementById(id);

	if (elemento.style.display=="none") {
		elemento.style.display="block";
	}
	else
	{
		elemento.style.display="none";
	}
}