var WinOpen;
function show_img(title, img_src, img_width, img_height) {
height = parseInt(img_height) + 30;
width = parseInt(img_width) + 30;
p_top=(screen.height-img_height)/2-30;
p_left=(screen.width-img_width)/2-30;
if(WinOpen != null){
WinOpen.close();
WinOpen = window.open("", "Foto", "closed=yes, toolbar=no, location=no, top="+p_top+", left="+p_left+", directories=no, status=no, menubar=no, scrollbars=no, resizable=no, width="+width+", height="+height+"");
}else{
WinOpen = window.open("", "Foto", "closed=yes, toolbar=no, location=no, top="+p_top+", left="+p_left+", directories=no, status=no, menubar=no, scrollbars=no, resizable=no, width="+width+", height="+height+"");
}
if(WinOpen != null){
WinOpen = window.open("", "Foto", "closed=yes, toolbar=no, location=no, top="+p_top+", left="+p_left+", directories=no, status=no, menubar=no, scrollbars=no, resizable=no, width="+width+", height="+height+"");
WinOpen.document.write(""+title+"");
WinOpen.document.write("");
WinOpen.document.write("");
}
return WinOpen;
}