XMLHttpRequest() enables you to check file availability by its methods: open, send and status.
fileexists = function(url) { var http = new XMLHttpRequest(); http.open('HEAD', url, false); http.send(); return http.status!=404; }
XMLHttpRequest() enables you to check file availability by its methods: open, send and status.
fileexists = function(url) { var http = new XMLHttpRequest(); http.open('HEAD', url, false); http.send(); return http.status!=404; }