var curtd=-1;
var tblsstyle = new Array();
var tabnames = new Array();
tabnames[0]='commontable';
tabnames[1]='wordstable';
tabnames[2]='w2table';
tabnames[3]='w3table';


function show_tab(tab)
{
  for (i=0; i<tabnames.length; i++)
  {
    cmtbl=document.getElementById(tabnames[i]);
    cmtbl.style.display='none';
    td=document.getElementById(tabnames[i]+'_td');
    td.className='tab_header_idle';
  }

  td=document.getElementById(tab+'_td');
  td.className='tab_header_cur';
  tblsstyle[curtd]=td.className;

  tbl=document.getElementById(tab);
  tbl.style.display='inline';

}

function mon(td, id)
{
  tblsstyle[id]=td.className;
  td.className='tab_header_over';
  curtd=id;
}

function mout(td, id)
{
  td.className=tblsstyle[id];
  curtd=-1;
}

function setprogress(progr)
{
  var pr=document.getElementById("progr");
  var pr_r=document.getElementById("progr_r");
  var pr_per=document.getElementById("progr_perc");
  pr.style.width=Math.round(200*progr);
  pr_r.style.width=Math.round(200*(1-progr));
  pr_per.innerHTML=progr*100+"%";
}