Kmin and Kmax Values

Problem:

I'm trying to use the zoomtovalues method but it isn't working for me. It either freezes or shows undefined scale-x values.

I'm calling the method like this:
zingchart.exec('pagePane0_divContent0_08700963073320478', 'zoomtovalues', {
xmin: 1235779200000, graphid:0,
xmax: 1238454000000
});

Solution:

Use kmin and kmax instead of xmin/xmax. Attached demo for your reference.