/****
funtions.js javascript routines
***/
function toggleLayer( whichLayer ){  
	var elem, vis;  
	if( document.getElementById ) // this is the way the standards work
	elem = document.getElementById( whichLayer );
	else if( document.all ) // this is the way old msie versions work
	elem = document.all[whichLayer];
	else if( document.layers ) // this is the way nn4 works
	elem = document.layers[whichLayer];
	vis = elem.style;  
	// if the style.display value is blank we try to figure it out here 
	if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
	vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
	vis.display = (vis.display==''||vis.display=='block')?'none':'block';
	}
function elemOff(elem_id){
		if(document.getElementById(elem_id))
			document.getElementById(elem_id).style.display = "none";
	}
function hideAll(){
		for( var i = 51; i <= 53; i++ )
			elemOff( 'expand_right_'+i );
	}


function swap(num) {
  if (document.layers) {
    document.layers["sel_" + num].visibility="visible";
  }
  else {
    document.all["sel_" + num].style.visibility="visible";
  }
}

function backpatch(num) {
  if (document.layers) {
    document.layers["sel_" + num].visibility="hidden";
  }
  else {
    document.all["sel_" + num].style.visibility="hidden";
  }
}

function rollOver(iName,iState)
    {
      if(document.images)
      {
        document.images[iName].src = eval(iName + '_' + iState + '.src');
      }
    }

function redirect(URLStr) { 
	top.location.href = URLStr; 
	}

var keysPressed = [];

function selectAsYouType(e)
{
    var keyChar; var keyNum;
    var comboBox;
    if (window.event) // Internet Explorer
    {
        keyNum = e.keyCode;            
    }
    else
    {
        return true; // browser doesn't support DOM, do default processing.
    }
    
    keyChar = String.fromCharCode(keyNum);
    comboBox = e.srcElement;
    
    if (!comboBox)
    {
        return true; // if DOM didn't work, do default processing
    }
    if (keyNum == 27) // Esc key
    {
        clearKeysPressed(comboBox);
    }
    else
    {
        return selectElement(comboBox, keyChar);
    }
    return true;
}

function clearKeysPressed(e)
{
    if (e.srcElement)
        keysPressed[e.srcElement]="";
}

function selectElement(comboBox, keyChar)
{
    var i = 0;
    var keysPressedSoFar =     keysPressed[comboBox] || "";
    keysPressedSoFar += keyChar;
    keysPressed[comboBox] = keysPressedSoFar;
    var options = comboBox.options;
    for (i = 0; i<options.length; ++i)
    {
        if (options[i].text.toUpperCase().indexOf
                                          (keysPressedSoFar.toUpperCase(), 0) == 0)
        {
            comboBox.selectedIndex = i;
            return false; // don't do default processing
        }
    }
    // didn't match start of any option, so reset keysPressed to just this key
    keysPressed[comboBox] = String(keyChar); 
    return true;        
}

function bookmarksite(title, url){
if (document.all)
window.external.AddFavorite(url, title);
else if (window.sidebar)
window.sidebar.addPanel(title, url, "")
}