<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><title>Disabled form control</title></head><body><form><p><input type="button" onclick="this.disabled=true;" onkeypress="this.disabled=true;" value="submit" /></p></form></body></html>