function centerX(winwidth) {
	return Math.floor((screen.availWidth - winwidth) / 2);
};                                                        

function centerY(winheight) {
	return Math.floor((screen.availHeight - winheight) / 2);
};

function DoOpenImage(sObr)
{
	var X = centerX(700);
  	var Y = centerY(580);
	var windowFeatures = 'status=yes,scrollbars=no,width=700,height=580,resizable=no,left='+X+',top='+Y;
	var win = window.open('FotoSlider.php?file='+sObr,'ImageShow',windowFeatures);
	win.focus();
}

function DoOpenImagePath(sObr,path)
{
	var X = centerX(700);
  	var Y = centerY(580);
	var windowFeatures = 'status=yes,scrollbars=no,width=700,height=580,resizable=no,left='+X+',top='+Y;
	var win = window.open('FotoSlider.php?file='+sObr+'&path='+path,'ImageShow',windowFeatures);
	win.focus();
}

function DoOpenImageSimple(sObr,nX,nY)
{
	var X = centerX(nX);
  	var Y = centerY(nY);
	var windowFeatures = 'status=yes,scrollbars=no,width='+nX+',height='+nY+',resizable=no,left='+X+',top='+Y;
	var win = window.open('FotoSimple.php?file='+sObr,'ImageShowSimple',windowFeatures);
	win.focus();
}

function DoOpenImageSimplePath(sObr,nX,nY,path,picWidth)
{
	var X = centerX(nX);
  	var Y = centerY(nY);
	var windowFeatures = 'status=yes,scrollbars=yes,width='+nX+',height='+nY+',resizable=no,left='+X+',top='+Y;
	var win = window.open('FotoSimple.php?file='+sObr+'&path='+path+'&w='+picWidth,'ImageShowSimple',windowFeatures);
	win.focus();
}