--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/site.js	Thu Oct 24 21:43:44 2024 -0600
@@ -0,0 +1,76 @@
+'use strict';
+
+function ajax(url,postData,context) {
+	let request = new XMLHttpRequest();
+	let method = postData ? 'POST' : 'GET';
+	request.open( method, url );
+	if( postData )
+		request.setRequestHeader( 'Content-Type', 'application/x-www-form-urlencoded' );
+	request.onload = function() {
+		if( request.status !== 200 ) {
+			let err = 'ajax failed: ' + request.status;
+			if( request.responseText ) {
+				err += '\n' + request.responseText.trim();
+				document.write('<pre>'+request.responseText+'</pre>');
+			}
+			err += '\nurl = ' + url;
+			err += '\npage = ' + window.location;
+			ajax( '/error_log.js', 'err='+encodeURIComponent(err) );
+			return;
+		}
+		try {
+			eval( request.responseText );
+		} catch(e) {
+			console.log( request.responseText );
+			window.err = '\najax-url = ' + url;
+			throw e;
+		}
+	};
+	request.send(postData);
+}
+
+window.onerror = function(msg, url, line, col, error) {
+	if( !url )
+		return;
+	let err = msg;
+	err += '\nurl = ' + url;
+	if( url != window.location )
+		err += '\npage = ' + window.location;
+	err += '\nline = '+line;
+	if( col )
+		err += '\ncolumn = ' + col;
+	if( error ) {
+		if( error.stack )
+			err += '\nstack = ' + error.stack;
+		if( error.cause )
+			err += '\ncause= ' + error.cause;
+		if( error.fileName )
+			err += '\nfileName= ' + error.fileName;
+	}
+	if( window.err ) {
+		err += window.err;
+		window.err = null;
+	}
+	ajax( '/error_log.js', 'err='+encodeURIComponent(err) );
+};
+
+function ajaxForm(url,form) {
+	let post = '';
+	for( let i=0; i<form.length; i++ ) {
+		let input = form[i];
+		let name = input.name;
+		if( name === '' )
+			continue;
+		let type = input.type;
+		if( (type==='radio' || type==='checkbox') && !input.checked )
+			continue;
+		post += name + '=' + encodeURIComponent(input.value) + '&';
+	}
+	ajax(url,post,{form:form});
+}
+
+function logout() {
+	document.cookie = 'user=; Max-Age=0; path=/;';
+	document.cookie = 'password=; Max-Age=0; path=/;';
+	location = '/';
+}