obj_data_page.addDivPage( "scheda", "txt_scheda" );
obj_data_page.div.actual_page = "scheda";

function centerDivMessage( scheda )
{
	var pos = document.viewport.getScrollOffsets();
	var w = document.viewport.getWidth();
	var h = document.viewport.getHeight();
	var wt = document.body.offsetWidth;
	var ht = document.body.offsetHeight;
	var y = pos[1] + 20;
	var x = ( w - 800 ) / 2 + pos[0];
	$( scheda ).style.top = y + "px";
	$( scheda ).style.left = x + "px";

	$( "bg_schede" ).style.width = wt + "px";
	$( "bg_schede" ).style.height = ht + "px";
};

function showMessageDiv( scheda )
{
	centerDivMessage( scheda );
	new Effect.Appear("bg_schede");

};

function hideMessageDiv( scheda )
{
	new Effect.Fade("bg_schede");
};

function printScheda( pagina )
{
	obj_data_page.actual_ajax_file = "ajax/" + pagina + ".html";
	obj_data_page.updatePage('');
	showMessageDiv( "scheda" );
};

//------------- visualizza/nasconde div
function effectDiv( l, div )
{
	var display = $(div).style.display;
	if( display == "none" )
	{
		new Effect.SlideDown( $( div ) );
		$( l ).innerHTML = "<a href=\"javascript://\"><i>[Chiudi]</i></a>"
	} else {
		new Effect.SlideUp( $( div ) );
		$(div).style.display = "none";
		$( l ).innerHTML = "<a href=\"javascript://\"><i>[Esempio...]</i></a>"
	}
};