var hexvalues = Array( "A", "B", "C", "D", "E", "F", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9" );
function flashtext() {
var colour = '#';
for( var counter = 1; counter <= 6; counter ++ ) {
var hexvalue = hexvalues[ Math.floor( hexvalues.length * Math.random() ) ];
colour = colour + hexvalue;
}
document.getElementById( 'flashingtext' ).style.color = colour;
}
setInterval( 'flashtext()', 500 );