var p1 = 200;
var p2 = 400;
var a;
var b;
function flashInit() {
//a = setTimeout("flashJB('off')",p1/2);
a = setTimeout("flashJBoN()",p2/2);
}

function flashJBoN() {
var src = "cc-on.jpg";
document.getElementById('cci').src=src;
b = setTimeout("flashJBoFf()",p2);
}
function flashJBoFf() {
var src = "cc-off.jpg";
document.getElementById('cci').src=src;
a = setTimeout("flashJBoN()",p1);
}

function flashBJ(mode) {
var src = "cc-"+mode+".jpg";
document.getElementById('cci').src=src;
b = setTimeout("flashBJ('off')",p1);
}
function flashStop() {
 clearTimeout(a);
 clearTimeout(b);
}