function _check_navigator(){
	var navig = "";
	var strChUserAgent = navigator.userAgent; // USER AGENT
	var intSplitStart = strChUserAgent.indexOf("(",0); // position de la parenthèse d'ouverture
	var intSplitEnd = strChUserAgent.indexOf(")",0); // position de la parenthèse de fermeture
	var strChStart = strChUserAgent.substring(0,intSplitStart);
	var strChMid = strChUserAgent.substring(intSplitStart, intSplitEnd);
	var strChEnd = strChUserAgent.substring(strChEnd);

	// Pour simplifier on va controler uniquement si le navigateur est IE6 
	// alert (strChUserAgent);
	if (strChMid.indexOf("MSIE 7") != -1){
		navig = "IE7";
		return navig;
	}else if(strChMid.indexOf("MSIE 6") != -1){
		navig = "IE6";
		return navig;
	}else if(strChEnd.indexOf("Firefox/2") != -1){
		navig = "FIREFOX2";
		return navig;
	}else if(strChEnd.indexOf("Firefox") != -1){
		navig = "FIREFOX";
		return navig;
	}else if(strChEnd.indexOf("Netscape/7") != -1){
		navig = "NETSCAPE7";
		return navig;
	}else if(strChEnd.indexOf("Netscape") != -1){
		navig = "NETSCAPE";
		return navig;
	}else if(strChStart.indexOf("Opera/9") != -1){
		navig = "OPERA9";
		return navig;
	}else if(strChStart.indexOf("Opera") != -1){
		navig = "OPERA";
		return navig;
	}else{
		navig = "AUTRE";
		return navig;
	}
}