function selected(id)
{
clearNavCSS();
document.getElementById(id).className='sel';
}


function clearNavCSS()
{
  document.getElementById('a1').className='';
  document.getElementById('a2').className='';
  document.getElementById('a3').className='';
  document.getElementById('a4').className='';
  document.getElementById('a5').className='';
  document.getElementById('a6').className='';
  document.getElementById('a7').className='';
}
function hover(row)
{
  if(row.className=='sel')
  {
	      row.style.color = "#507154";
	     //row.className="Hover";
  }
  else
  {
	  //row.style.backgroundColor = "#D8E9FF";
	  row.className="hover";
  }
}
function hoverOut(row)
{
	if(row.className=='sel')
	{
	row.style.color = "";
	}
	else
	{
	row.className="";
	}
}
function resizeiframe()
{ 
//hideMessage();
var currentfr=document.getElementById('nav') 
if (currentfr &&!window.opera)
{ 
    currentfr.style.display="block" 
    if (currentfr.contentDocument && currentfr.contentDocument.body.scrollHeight){ //ns6 & Fire Fox syntax 
	if(currentfr.contentDocument.body.scrollHeight>500)
	{
		currentfr.height = currentfr.contentDocument.body.scrollHeight;
	}
	else
	{currentfr.height = 500;}
	//currentfr.width =  currentfr.contentDocument.body.offsetWidth;
    }
    else if (currentfr.Document && currentfr.Document.body.scrollHeight){ //ie5+ syntax 
	if(currentfr.Document.body.scrollHeight > 500)
       {
		currentfr.height = currentfr.Document.body.scrollHeight+10;
       }
       else
	{currentfr.height = 500;}
	//currentfr.width = currentfr.Document.body.scrollWidth;
    }
    //add event listeners to the frame
    if (currentfr.addEventListener){ 
		currentfr.addEventListener("load", resizeiframe, false);
	//currentfr.addEventListener("load", hideMessage, false);
    }
    else if (currentfr.attachEvent)
    { 
		currentfr.detachEvent("onload", readjustiframe); // Bug fix line 
		currentfr.attachEvent("onload", readjustiframe);
		//currentfr.attachEvent("onload", hideMessage);
    }
} 
} 
function readjustiframe(loadevt) 
{ 
    var crossevt=(window.event)? event : loadevt 
    var iframeroot=(crossevt.currenttarget)? crossevt.currenttarget : crossevt.srcElement 
    if (iframeroot) 
		resizeiframe(iframeroot.id); 
} 




function initfr( fr )
{
    if(fr.contentWindow.document.addEventListener)
	fr.contentWindow.document.addEventListener("click", resizeiframe, false);
    else if (fr.contentWindow.document.attachEvent)
	fr.contentWindow.document.attachEvent("onclick", resizeiframe);
    else
	fr.contentWindow.document.onclick = resizeiframe;
}
function loadFrame(url)
{              
    document.getElementById('nav').src=url;
}