// setta le variabili

	var popWindowWidth = '450'; // pop up window width (in pixels) .
	var popWindowHeight = '452'; // pop up window height (in pixels).
	var popWindowBackgroundColor = '#C7D9F1'; // pop up window background color (named or rgb).
	var popWindowPadding = '5'; // padding or margin between contents of pop up window and edges of pop up window in pixels.
	var popWindowBorderStyle = 'solid'; // type of border for popup (solid,double,grooved,ridged,inset,outset).
	var popWindowBorderWidth = '2'; // border thickness of popup window (must be at least 3 for double style).
	var popWindowBorderColor = '#fff'; // color of border (named or rgb).
	var popWindowDelay = '500'; // microseconds before pop up is displayed (1000 = 1 second).
	var popleft = (screen.availWidth-450)/2;
	var poptop = (screen.availHeight-452)/3;

	var ie=document.all
	var ns6=document.getElementById && !document.all

function showPopUp(){
	document.getElementById('pWinConfg').style.visibility='visible'
}

function hidePopUp(){
	document.getElementById('pWinConfg').style.visibility='hidden'
}   
function startPopUp(){
	timerID=setTimeout('showPopUp()',popWindowDelay);
} 

// costruisce il css
var pWinConfg = "<style>.pWinConfg{\n";
	pWinConfg += "position:absolute;\n";
	pWinConfg += "top:"+poptop+"px;\n";
	pWinConfg += "left:"+popleft+"px;\n";
	pWinConfg += "width:"+popWindowWidth+";\n";
	pWinConfg += "height:"+popWindowHeight+";\n";
	pWinConfg += "background-color:"+popWindowBackgroundColor+";\n";
	pWinConfg += "border-style:"+popWindowBorderStyle+";\n";
	pWinConfg += "border-width:"+popWindowBorderWidth+";\n";
	pWinConfg += "border-color:"+popWindowBorderColor+";\n";
	pWinConfg += "padding:"+popWindowPadding+";\n";
	pWinConfg += "visibility:hidden;\n";
	pWinConfg += "}<\/style>\n";
	
document.write(pWinConfg);