defaultWidth  = 700;
defaultHeight = 500;

PositionX = Math.round(screen.width/2 - defaultWidth/2);PositionY = Math.round((screen.height-100)/2 - defaultHeight/2 - 25);

var optNN='scrollbars=yes,width='+defaultWidth+',height='+defaultHeight+',left='+PositionX+',top='+PositionY;

function pop_image(id){
imgWin=window.open('plugins/galeria_popimg.php?g='+id,'',optNN);
}