function insert_bg(x,y,p_url){
if (is_nav4){
//alert('is_nav4');
document.write('');
// NB next line required to force redraw
//window.resizeBy(-1, -1);
// NB next line required to stop infinite reload loop
//document(close);
}
if (is_nav5up){
//alert('is_nav5up');
document.write('');
// NB next line required to force redraw
window.resizeBy(-1, -1);
// NB next line required to stop infinite reload loop
//document(close);
}
if (is_ie || is_opera){
if (is_opera){
//alert('is_opera');
document.write('');
}
else{
//alert('is_ie');
if (document.body){ document.body.background = "";}
document.write('
');
}
}
}