var nr_char=new Array;
nr_char[0]='0';
nr_char[1]='1';
nr_char[2]='2';
nr_char[3]="3";
nr_char[4]='4';
nr_char[5]='5';
nr_char[6]='6';
nr_char[7]='7';
nr_char[8]='8';
nr_char[9]='9';
nr_fic='9999';

function rnd_nr(char_limite)
{
nr_=Math.round(Math.random()*char_limite);
char=nr_char[nr_];
return char;
}
function fic_nr(str_limite)
{
while(nr_fic>str_limite)
	{
	nr_fic='0'+'0'+rnd_nr(1)+rnd_nr(9);
//	alert(nr_fic);
	}
return nr_fic;
}
src_str='http://www.cege.net/bannieres/468x60/b'+fic_nr('0011');
htm_name=src_str+'.htm';
gif_name=src_str+'.gif';
document.write('<A onclick="window.open(htm_name,\'_blank\')"><IMG SRC="'+gif_name+'" BORDER=0></A>');