if (screen.Width && screen.Height) {var jsinfocall=new Image;jsinfocall.src='http://www.smartadserver.com/a/track/jsinfo.asp?sw='+screen.Width+'&sh='+screen.Height;}

var p121469_FlashMode7=0;
var p121469_FlashNN=(navigator.mimeTypes && navigator.mimeTypes["application/x-shockwave-flash"]) ? navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin : 0;
if ( p121469_FlashNN ) {
 p121469_FlashMode7=parseInt(p121469_FlashNN.description.substring(p121469_FlashNN.description.indexOf(".")-1)) >= 7;
}
else if (navigator.userAgent && navigator.userAgent.indexOf("MSIE")>=0) {
 if (navigator.userAgent.indexOf("Win")>=0) {
 document.write('<SCR'+'IPT LANGUAGE=VBScript\> \n');
 document.write('on error resume next \n');
 document.write('p121469_FlashMode7=(IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.7")))\n');
 document.write('</SCR'+'IPT\> \n');
 }
 else {
 p121469_FlashMode7=(navigator.userAgent.indexOf("Mac")>=0);
 }
}

if (p121469_FlashMode7) {
 document.write('<OBJECT classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" ');
 document.write('  codebase="' + document.location.protocol + '//download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0" ');
 document.write(' ID=pub_Flash981979 WIDTH=250 HEIGHT=250> ');
 document.write(' <PARAM name=allowScriptAccess value=always />');
 document.write(' <PARAM NAME=movie VALUE="http://im3.smartadserver.com/121469/fnce_250x250_swf.swf?target=_blank&clicktag=http://pubs.lemonde.fr/RealMedia/ads/click_lx.ads/SCIENCES-LEMONDE/articles_sciences/exclu/763545363/Middle/OasDefault/lm_fnce_rg_dec_middle/fnce250.html/38323331646461373435383137636230?http://www.smartadserver.com/121469/go7.asp%3F121469;346;8867356386094250561;2006.12.14.16.32.52763545363;M;981979&clickTag=http://pubs.lemonde.fr/RealMedia/ads/click_lx.ads/SCIENCES-LEMONDE/articles_sciences/exclu/763545363/Middle/OasDefault/lm_fnce_rg_dec_middle/fnce250.html/38323331646461373435383137636230?http://www.smartadserver.com/121469/go7.asp%3F121469;346;8867356386094250561;2006.12.14.16.32.52763545363;M;981979&clickTAG=http://pubs.lemonde.fr/RealMedia/ads/click_lx.ads/SCIENCES-LEMONDE/articles_sciences/exclu/763545363/Middle/OasDefault/lm_fnce_rg_dec_middle/fnce250.html/38323331646461373435383137636230?http://www.smartadserver.com/121469/go7.asp%3F121469;346;8867356386094250561;2006.12.14.16.32.52763545363;M;981979"> ');
 document.write(' <PARAM NAME=quality VALUE=high> ');
 document.write(' <PARAM NAME=WMode VALUE=Opaque> ');
 document.write(' <EMBED NAME=pub_Flash981979 SRC="http://im3.smartadserver.com/121469/fnce_250x250_swf.swf?target=_blank&clicktag=http://pubs.lemonde.fr/RealMedia/ads/click_lx.ads/SCIENCES-LEMONDE/articles_sciences/exclu/763545363/Middle/OasDefault/lm_fnce_rg_dec_middle/fnce250.html/38323331646461373435383137636230?http://www.smartadserver.com/121469/go7.asp%3F121469;346;8867356386094250561;2006.12.14.16.32.52763545363;M;981979&clickTag=http://pubs.lemonde.fr/RealMedia/ads/click_lx.ads/SCIENCES-LEMONDE/articles_sciences/exclu/763545363/Middle/OasDefault/lm_fnce_rg_dec_middle/fnce250.html/38323331646461373435383137636230?http://www.smartadserver.com/121469/go7.asp%3F121469;346;8867356386094250561;2006.12.14.16.32.52763545363;M;981979&clickTAG=http://pubs.lemonde.fr/RealMedia/ads/click_lx.ads/SCIENCES-LEMONDE/articles_sciences/exclu/763545363/Middle/OasDefault/lm_fnce_rg_dec_middle/fnce250.html/38323331646461373435383137636230?http://www.smartadserver.com/121469/go7.asp%3F121469;346;8867356386094250561;2006.12.14.16.32.52763545363;M;981979" ');
 document.write(' swLiveConnect=TRUE WIDTH=250 HEIGHT=250 ');
 document.write(' QUALITY=high wMode=Opaque ');
 document.write(' allowScriptAccess=always TYPE="application/x-shockwave-flash" PLUGINSPAGE="http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash"> ');
 document.write('</EMBED> ');
 document.write('</OBJECT> ');
}
else {
 document.write('<A HREF="http://pubs.lemonde.fr/RealMedia/ads/click_lx.ads/SCIENCES-LEMONDE/articles_sciences/exclu/763545363/Middle/OasDefault/lm_fnce_rg_dec_middle/fnce250.html/38323331646461373435383137636230?http://www.smartadserver.com/121469/go6.asp?121469;346;8867356386094250561;2006.12.14.16.32.52763545363;M;981979" TARGET="_blank"><IMG SRC="http://www.smartadserver.com/121469/fnce_250x250_swf.gif" WIDTH=250 HEIGHT=250 BORDER=0></A>');
}