var imgPath = "images/big/";
var imgSrc = "";
var popup;

function showPicture(picName, horisontal)
{
	var left, top;
	var height = (screen.height - 100);
	var width = (screen.width - 100);

	if(!horisontal)
	{
		width = height*height/width;
	}
	
	left = (screen.width - width) / 2;
	top = (screen.height - height) / 3;

	var leftTop = ",screenX=" + left + ",left=" + left	
                + ",screenY=" + top + ",top=" + top;
	if(popup)
		popup.close();
	imgSrc = imgPath + picName;
	popup  = window.open('show_image.html','popup','width=' + width + ',height=' + height + ',toolbar=no, location=no,directories=no,status=No,menubar=no,scrollbars=yes,copyhistory=no, resizable=yes' + leftTop);
	return;
}


function showPoem()
{
	var left, top;
	var height = (screen.height - 100);
	var width =  (screen.width - 100);

	//width = height*height/width;
	width = 600;

	left = (screen.width - width) / 2;
	top = (screen.height - height) / 3;
	
	var leftTop = ",screenX=" + left + ",left=" + left	
                + ",screenY=" + top + ",top=" + top;
	if(popup)
		popup.close();
		
	popup  = window.open('show_poem.html','popup','width=' + width + ',height=' + height + ',toolbar=no, location=no,directories=no,status=No,menubar=no,scrollbars=yes,copyhistory=no, resizable=yes' + leftTop);
	return;
}