Set value method not understood

selector.simpleSlider("setValue", value);
in above sentence
What is 'selector'. How can i use this
I am using
input type="text" data-slider="true" value="30000" data-slider-range="25000,10000000" data-slider-step="10000" data-slider-snap="true" id="la"

When slider loaded i want to set value from another input field so how can i change slider from selected value from another input field.

Please help...

[benbinesh]

$('#la').simpleSlider("setValue",500);