function VerifPlugIn(ExtensionFile)
{
	var IsEnabled = true;
	if (navigator.appName=="Netscape")
  	{
		IsEnabled = false;
		for(var x=0;(x<navigator.mimeTypes.length && !IsEnabled);x++)
		{
			if(navigator.mimeTypes[x].suffixes.indexOf(ExtensionFile)>=0) IsEnabled=navigator.mimeTypes[x].enabledPlugin;
 		}
    }
	return IsEnabled;
}
function PlaySound(MyName,MyExtension,MyLoop)
{
	var AudioEnable=VerifPlugIn(MyExtension),TheLoop='';
	if (navigator.appName=="Netscape" && MyLoop==1) TheLoop='true';
	if (AudioEnable) eval('document.'+MyName+'.play('+TheLoop+')');
}    
function StopSound(MyName,MyExtension)
{
	var AudioEnable=VerifPlugIn(MyExtension);
	if (AudioEnable) eval('document.'+MyName+'.stop()');
}