need a code

[dawsonk]

Maybe you can adapt this...

// bottom layer - 'linesMC', empty movie clip at 0,0
// middle layer -  dot movie clips, put instance names in dots array below
// top layer - 'drawMC', empty move clip at 0,0

var lineColor = 0x000000;
var dots = [dot1, dot2, dot3, dot4, dot5, dot6, dot7, dot8];
var startDot = null;
onMouseDown = updateLines;

function updateLines() {
        var dot = checkHit(dots);
        if (dot != null) {
                if (startDot == null) {
                        startDot = dot;
                        onMouseUp = function () {
                                checkLine();
                                startDot.onEnterFrame = null;
                                startDot = null;
                        };
                        startDot.onEnterFrame = function() {
                                drawMC.clear();
                                drawMC.lineStyle(6,lineColor,80);
                                drawMC.moveTo(this._x,this._y);
                                drawMC.lineTo(_xmouse,_ymouse);
                        };
                } else {
                        checkLine();
                        startDot.onEnterFrame = null;
                        startDot = null;
                }
        } else {
                var line = checkHit(linesMC);
                if (line != null) {
                        removeMovieClip(line);
                        checkComplete()
                }
        }
};
function checkLine() {
        var dot = checkHit(dots);
        if (dot != null && startDot != dot) {
                var mc = linesMC.createEmptyMovieClip("mc" + linesMC.getNextHighestDepth(), linesMC.getNextHighestDepth());
                mc.lineStyle(6,lineColor,100);
                mc.moveTo(startDot._x,startDot._y);
                mc.lineTo(dot._x,dot._y);
                checkComplete();
        }
        drawMC.clear();
}
function checkHit(grp) {
        var mc = null;
        for (var i in grp) {
                if (grp[i].hitTest(_xmouse, _ymouse, true)) {
                        mc = grp[i];
                        return mc;
                }
        }
        return mc;
}
function checkComplete() {
        var ct = 0;
        var len = dots.length - 1;
        var num = 0;
        for (var i in linesMC) {
                for (var j = 0; j < len; j++) {
                        if (linesMC[i].hitTest(dots[j]._x, dots[j]._y, true) && linesMC[i].hitTest(dots[j + 1]._x, dots[j + 1]._y, true)) {
                                ct++;
                        }
                }
                num++
        }
        if (num == ct && ct == len){
                trace("puzzle complete")
                onMouseDown = null;
        }
}