javascript - Apply animation if location.href.indexOf ends with #name - not working -

can please explain going wrong here. when visits /page.php#mobile hyperlink on homepage i'd 1 of relevant actions take place

$(function() {     if ( document.location.href.indexof('#mobile') > -1 ) {         $('#div1').animate({ backgroundcolor: "#f00" }, "slow");         $('#div1').animate({ backgroundcolor: "#fff" }, "slow");     else if ( document.location.href.indexof('#pc') > -1 ) {         $('#div2').animate({ backgroundcolor: "#f00" }, "slow");         $('#div2').animate({ backgroundcolor: "#fff" }, "slow");     } }); 

right nothing seems working?