javascript - Dynamic wordpress background Based on Slider images -

i using nivoslider on wordpress , want background of homepage change based on current slide image! have no experience in javascript nor jquery im in php / html5 / css3. thanks.

the wordpress nivo slider not have ability edit callbacks on slider change (unless edit plugin, breaking compatibility future versions). general jquery plugin allows that. when setting slider:

$('#slider').nivoslider({     // [snip]     afterchange: function(){         // active image         var active_image = $(".nivo-controlnav .active");         // change class on element , style element css         // e.g. fetching attribute $(active_image).attr()     },     // [snip] });