_adjustOffsetFromHelper: function(obj) {
        if(obj.left != undefined) this.offset.click.left = obj.left + this.margins.left;
        if(obj.right != undefined) this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;
        if(obj.top != undefined) this.offset.click.top = obj.top + this.margins.top;
        if(obj.bottom != undefined) this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;