salesforce - Javascript Function Not Getting Called after setFocus() call -


i using java-script in salesforce application , in middle of bizarre situation.

i have used below code in visualforce page.

<script>     var previousonload = window.onload;     window.onload = function() {         if (previousonload) {             previousonload();         }          rendersection('false');         setfocus();     }      function setfocus() {         document.getelementbyid("{!$component.thepageblock.state}").focus()     }      function rendersection(input) {         if (input == true) {             document.getelementbyid("{!$component.thepageblock.thesection}").style.display='block';         }     } </script>

the problem facing after setfocus() function called other function rendersection() not called. when remove setfocus() , try, rendersection() called. seen in above code have tried giving rendersection() before setfocus(). still not work. know if missing here?

also, when tried change setfocus() different putfocus or getfocus function called focus not set desired field.

thanks


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