How to use javascript code in unix shell

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http://www.unix.com – Hi Need help...I have wrritten one code for html through shell scripting in that i am using java scripts to validate some condition and open the html page without clicking the button.... Code Details Code: echo "<script type="text/javascript">" echo "function exec_refresh()" echo "{"       echo " window.status = "Redirecting..." + myvar;"         echo "myvar = myvar + " .";"         echo "var timerID = setTimeout("exec_refresh();" (HowTos)