function toggleTabs(widgetname,num) {
      if (!document.getElementById) return false;

      for (x=0; x<numtabs; ++x)
      {
		  if (x==num)
		  {
		  	document.getElementById(widgetname+"_"+x).style.display = "block";
            document.getElementById(widgetname+"_"+x+"_tab").src = tab_on[x];
		  }
		  else
		  {
		  	document.getElementById(widgetname+"_"+x).style.display = "none";
            document.getElementById(widgetname+"_"+x+"_tab").src = tab_off[x];
		  }
      }
      return false;
}