<!--

    function ShowLogin(overlay , lightbox, container) {		
		$(container).setStyle({ display:'block' });
        var arrayPageSize = getPageSize1();
        var arrayPageScroll = document.viewport.getScrollOffsets();
        var lightboxTop = arrayPageScroll[1] + (document.viewport.getHeight() / 10);
		$(lightbox).setStyle({ top: lightboxTop + 'px' }) ;
        $(overlay).setStyle({ width: arrayPageSize[0] + 'px', height: (arrayPageSize[1] ) + 'px' });		
        new Effect.Appear(overlay, { duration: 0.2, from: 0.0, to: 0.8});
        $(lightbox).appear();			
    }
	
	
	
	function Start(lightbox, overlay) {
        var arrayPageSize = getPageSize1();
        var arrayPageScroll = document.viewport.getScrollOffsets();
        var lightboxTop = arrayPageScroll[1] + (document.viewport.getHeight() / 10);
        var lightboxLeft = arrayPageScroll[0];    
        //$(lightbox).setStyle({ top: lightboxTop + 'px' }) ;
		$(overlay).setStyle({ top: arrayPageScroll[1] + 'px' }) ;
        $(overlay).hide();
        $(lightbox).hide();  
    }
	
	
	
	function Chiudi(lightbox, overlay, container){
		$(container).setStyle({ display:'none' });		
        $(lightbox).hide();  
        new Effect.Fade($(overlay), { duration: 0.8 });
	}
        
     function getPageSize1() {
	     var xScroll, yScroll;
		
		if (window.innerHeight && window.scrollMaxY) {	
			xScroll = window.innerWidth + window.scrollMaxX;
			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
			if(document.documentElement.clientWidth){
				windowWidth = document.documentElement.clientWidth; 
			} else {
				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 = xScroll;		
		} else {
			pageWidth = windowWidth;
		}

		return [pageWidth,pageHeight];
	}    
	
		
-->