function in_array(haystack,needle){for(i=0;i<haystack.length;i++)
{if(haystack[i]==needle)
{return true;}}
return false;}
function array_pos(haystack,needle){for(i=0;i<haystack.length;i++)
{if(haystack[i]==needle)
{return i;}}}
function show_item(divname,on_off)
{if(on_off)
{document.getElementById(divname).style.display='block';document.getElementById(divname+'-on').style.display='none';}
else
{document.getElementById(divname).style.display='none';document.getElementById(divname+'-on').style.display='block';}}
function set_on(divname)
{document.getElementById(divname).style.display='none';document.getElementById(divname+'-on').style.display='none';document.getElementById(divname+'-onitem').style.display='block';}