javawsInstalled = 0; 
javaws12Installed = 0; 
javaws142Installed=0; 
isIE = "false";
javaVersion = "";

if (navigator.mimeTypes && navigator.mimeTypes.length) {
	if (is_win) javaVersion = java.lang.System.getProperty("java.version");
	x = navigator.mimeTypes['application/x-java-jnlp-file'];    

	if (x ||
	((navigator.userAgent.indexOf("Gecko") !=-1) && (!(is_linux))) ||
	((is_mac) && (is_opera))) { 
		javawsInstalled = 1; 
		javaws12Installed = 1;       
		javaws142Installed = 1;
	} 
} 
else {    
	isIE = "true"; 
}