keys = new Array();
commands = new Array();

function doKey(event) {
	    if(event.which>0) key = event.which; // Netscape
	    else key = event.keyCode;
	    
	    for (i=0;i<keys.length;i++) {
  	      if (key==keys[i]) { // && event.altKey) {
  	        eval(commands[i]);
  	      }
	    }
	    return false;
	  }	  
	  
function addKey(key,command) {
//  alert('adding'+key+command);
  keys.push(key.charCodeAt(0));
  commands.push(command);
}