//detection du navigateur
var IE6 = false, IE7 = false, FIREFOX2  = false, FIREFOX  = false, NETSCAPE7 = false, NETSCAPE = false, OPERA9 = false, OPERA = false, AUTRE = false;
var intSplitStart = navigator.userAgent.indexOf("(",0);
var intSplitEnd = navigator.userAgent.indexOf(")",0);
var strChStart = navigator.userAgent.substring(0,intSplitStart);
var strChMid = navigator.userAgent.substring(intSplitStart, intSplitEnd);
var strChEnd = navigator.userAgent.substring(strChEnd);
if(strChMid.indexOf("MSIE 7") != -1){
	IE7 = true;
	var versionNav = "IE7";
}else if(strChMid.indexOf("MSIE 6") != -1){
	IE6 = true;
	var versionNav = "IE6";
}else if(strChEnd.indexOf("Firefox/2") != -1){
	FIREFOX2 = true;
	var versionNav = "FF2";
}else if(strChEnd.indexOf("Firefox") != -1){
	FIREFOX = true;
	var versionNav = "FF";
}else if(strChEnd.indexOf("Netscape/7") != -1){
	NETSCAPE7 = true;
	var versionNav = "NETSCAPE7";
}else if(strChEnd.indexOf("Netscape") != -1){
	NETSCAPE = true;
	var versionNav = "NETSCAPE";
}else if(strChStart.indexOf("Opera/9") != -1){
	OPERA9 = true;
	var versionNav = "OPERA9";
}else if(strChStart.indexOf("Opera") != -1){
	OPERA = true;
	var versionNav = "OPERA";
}else{
	AUTRE = true;
	var versionNav = "AUTRE";
}
//fin detection navigateur