function toggle_visibility(id) {
        var e = document.getElementById(id);
        //alert  (e.style.display);
        if(e.style.display == 'block')
        	{e.style.display = 'none';}
        else
        	{e.style.display = 'block';}
  			//alert  (e.style.display);
      }


      function hide(id) {
        var e = document.getElementById(id);
        	e.style.display = 'none';
  			//alert  (e.style.display);
      }
 
      function show(id) {
        var e = document.getElementById(id);
        	e.style.display = 'block';
  			//alert  (e.style.display);
      }
 
// pass in three parameters.... first two are to hide, 3 is one to show.
      function doAll3(a,b,c) {
        hide(a);
				hide(b);
				toggle_visibility(c);
  			//alert  (e.style.display);
      }
			
			
// pass in three parameters.... show all three.
      function showAll3(a,b,c) {
        hide(a);
				hide(b);
				hide(c);
				toggle_visibility(a);
				toggle_visibility(b);
				toggle_visibility(c);
  			//alert  (e.style.display);
      }

// pass in three parameters.... show all three.
      function hideAll3(a,b,c) {
        hide(a);
				hide(b);
				hide(c);
  			//alert  (e.style.display);
      }

// pass in alternates red/white on clicked rows.
      function makeRed(T,action)
      {
        if(action == 'b')
        {
        T.style.backgroundColor='#84C1DF';
        }else if(action == 'w')
        {
        T.style.backgroundColor='#ffffff'
        }else if(action == 'r')
        {
      	
        s = document.getElementById(T);
        	if(s.style.backgroundColor == '')
        	{
        	s.style.backgroundColor='#ffff99';
        	}
        	else
        	{
        	s.style.backgroundColor='';
          }
      	}
      }

			// pass in two parameters.... first one is to hide, 2 is one to show.
      function hideShow(a,b) {
        hide(a);
				show(b);
  			//alert  (e.style.display);
      }

	  // on click, changes the [+] to a [-] to signify collapsing
	  function changeLink(collapse)
		{
			if (document.getElementById(collapse).innerHTML=="[+]")
				{
					document.getElementById(collapse).innerHTML="[-]";
					document.getElementById(collapse).href="#";
					document.getElementById(collapse).target="_self";
				}
			else
				{
					document.getElementById(collapse).innerHTML="[+]";
					document.getElementById(collapse).href="#";
					document.getElementById(collapse).target="_self";
				}
		}