javascript - jquery Window Height getting same when Load and After Resize -

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i trying adjust div height based on browser window height. getting same height when page/body being load , after resize browser window.

function setdivheight() {     var bodyheight = $(document).height();     document.getelementbyid('divname').style.height = (bodyheight - 180) + "px"; }  function pageload() {     setdivheight(); }  window.onresize = setdivheight(); 

// returns height of browser viewport // use $( window ).height();  // returns height of html document $( document ).height();

example from: http://api.jquery.com/height/


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