onHelp This event handler will execute the instruction(s) when the user has chosen help from the browser menu or has pressed the F1 key. syntax: document.onHelp = function() The onHelp Event Handler is used with the following: A ACRONYM ADDRESS APPLET AREA B BIG BLOCKQUOTE BODY BUTTON CAPTION CENTER CITE CODE DD DEL DFN DIR DIV DL DT EM FIELDSET FONT FORM H1 H2 H3 H4 H5 H6 HR I IMG INS KBD LABEL LEGEND LI LISTING MAP MARQUEE MENU OBJECT OL P PLAINTEXT PRE Q S SAMP SELECT SMALL SPAN STRIKE STRONG SUB SUP TABLE TBODY TD TEXTAREA TFOOT TH THEAD TR TT U UL VAR XMP button checkbox document fileUpload password radio reset submit text window