/**
 * Checks if a rectangle belongs in any of the existing groups
 */
function removesFromGroup(group, tempRect) {

/**
* I created a bin group and I send the rectangle to this group by using group.moveTo(bin)
*/
var bin = new Kinetic.Group({
    name:'bin',
    x : -480,
    y : -50
});

for (var j = 0; j < group.getChildren().length; j++) {
    //  var groupCube_x = (groups[i].getChildren()[j]).getAbsolutePosition().x;

    if (group.getChildren()[j] == tempRect) {
        tempRect.moveTo(bin);


        // alert("Move to bin");
        //tempRect.remove();
        //tempRect.getParent().remove(bin);

        //bin.destroy();


        layer.draw();
    }
}
return false;
}

/**
 * Checks if a rectangle belongs in any of the existing groups and
 * destroys it if so.
 */
function removesFromGroup(group, tempRect) {

    group.getChildren().forEach(function(child){

        if (child == tempRect) {
            tempRect.destroy();
            layer.draw();
        }
    });

    return false;
}