add: if( e == undefined ) e = window.event; 
context:    var mousemove = function( e ) {      hop_vpaned_mousemove( e, paned );   };
meta: 4636	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4636/25d9ce99298d54dd2c4ffab4a9109a8fbab2a981/hop-paned.js/buggy/share/hop-paned.js