var fbNumBars = 16;	// number of bars in the wave
var arrColors = [[255, 195], [153, 220], [0, 121]];	// the possible colors of the bars
var arrBarColors = [0];	// the actual colors for each bar
var arrBars = [0];		// the bars
var arrPercents = [0];	// the hight of the bars
var uberBar = null;		// container layer that holds all the bars
var fbWidth = 2;		// the width of each bar
var fbGap = 1;			// the space between bars
var fbHeight = 20;		// the max height of each bar
var fbInitLeft = 200;	// left will be overridden to left of search button
var fbInitTop = 200;	// top will be overridden to top of search button
var iTimeOutInterval = 20;	// the bigger the number the slower the wave
var bCancled = false;	

function searchFeedback()
{
	if (document.layers)
		return;
		
/* ----- removed stuff to cancel feedback
	scrollH=(window.pageYOffset!=null)?window.pageYOffset:document.body.scrollTop;
	var oCapture = null
	if (document.all)
		oCapture = captureClick;
	else if (document.getElementById)
		oCapture = document.getElementById("captureClick");
	if (oCapture)
	{
		oCapture.style.top = scrollH + "px";
		oCapture.style.visibility = "visible";
	}
-------------------- */	
	bCancled = false;

	var elementReference = null;
	if (document.all)
		elementReference = whereIsButton;
	else if (document.getElementById)
		elementReference = document.getElementById("whereIsButton");
	if (elementReference == null)
		return;

	// find the location of the search button
	fbInitLeft = DL_GetElementLeft(elementReference);
	fbInitTop = DL_GetElementTop(elementReference);	// show the wave under the button

	if (uberBar == null)
	{
		var sRed, sGreen, sBlue;
		var incRed, incGreen, incBlue;
		var fSin;
		incRed = Math.floor((arrColors[0][1] - arrColors[0][0]));
		incGreen = Math.floor((arrColors[1][1] - arrColors[1][0]));
		incBlue = Math.floor((arrColors[2][1] - arrColors[2][0]));
		uberBar = document.createElement("DIV");
		document.body.appendChild(uberBar);
		with (uberBar.style)
		{
			position = "absolute";
			visibility = "visible";
			zIndex = "19";
			background = "white";
			width = (fbWidth+fbGap)*fbNumBars*2;
			var add2 = fbHeight * fSin + fbHeight*3;
			height = fbHeight*2;
			left = fbInitLeft;
			top = fbInitTop;
			clip = "rect(0 "+(fbWidth+fbGap)*fbNumBars*2+" "+fbHeight*6+" 0)";
		}			
	
		for (i=0; i<fbNumBars; i++)
		{
			fSin2 = Math.sin(i*Math.PI/(fbNumBars-1));
			sRed = fb_getColor(0, Math.abs(fSin2)*incRed);
			sGreen = fb_getColor(1, Math.abs(fSin2)*incGreen);
			sBlue = fb_getColor(2, Math.abs(fSin2)*incBlue);
			arrBars[i] = document.createElement("SPAN");
			uberBar.appendChild(arrBars[i]);
			arrBars[i].innerHTML = "<img src='/images/common/x.gif' width=" + fbWidth + " height=2>";
			with (arrBars[i].style)
			{
				position = "absolute";
				visibility = "inherit";
				background = "#FF9900";
				zIndex = "20";
				width = fbWidth+"px";
				height = "2px";
				left = i*(fbWidth + fbGap);
				top = fbHeight/2 - 1;
//				(fbHeight - (fbHeight * fSin + fbHeight)/2) + "px";
			}
			arrBars[i].maxheight = fbHeight * fSin2;
			arrPercents[i] = 0;
			arrPercents[i+fbNumBars] = fSin2;
			arrBarColors[i] = "#FF9900";
			arrBarColors[i+fbNumBars] = "#"+sRed+sGreen+sBlue;
		}


	// if you want to have the wave speed up each time the search button is
	// pressed, move the following 2 lines out of the if {}

	uberBar.style.visibility = "visible";
	fbStartWave();
	}
}

function fbStartWave()
{
	if (bCancled)
		return;
	for (i=1; i<fbNumBars-1; i++)
	{
		arrBars[i].style.height = (2 + arrPercents[i]*arrBars[i].maxheight) + "px";
		arrBars[i].style.top = (fbHeight/2 - (2 + arrPercents[i]*arrBars[i].maxheight)/2) + "px";
		arrBars[i].style.background = arrBarColors[i];
	}

	var fPct0 = arrPercents[arrPercents.length-1];
	var sColor0 = arrBarColors[arrPercents.length-1];
	for (i=arrPercents.length-1; i>0; i--)
	{
		arrPercents[i] = arrPercents[i-1];
		arrBarColors[i] = arrBarColors[i-1];
	}
	arrPercents[0] = fPct0;
	arrBarColors[0] = sColor0;

	setTimeout("fbStartWave()", iTimeOutInterval);
}

function fb_getColor(iColor, iinc)
{
	var sColor = Math.floor((arrColors[iColor][0] + Math.floor(iinc)));
	sColor = returnBase(sColor, 16) + "";
	if (sColor.length < 2)
		sColor = "0" + sColor;
	return sColor;
}


function makeArray() {
    for (i = 0; i<makeArray.arguments.length; i++)
        this[i] = makeArray.arguments[i];
}

// the following was found in a FAQ about converting numbers to HEX in javascript at
// http://www.freeflights.net/atasi/divers/cjvscr/faqqa/fnumber.html
var convert = new makeArray('0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z');
function returnBase(number,base) {
    if (number < base) var output = convert[number];
    else {
        var MSD = '' + Math.floor(number / base);
        var LSD = number - MSD*base;
        if (MSD >= base) var output = returnBase(MSD,base) + convert[LSD];
        else var output = convert[MSD] + convert[LSD];
    }
    return output;
}


// the following scripts were found on 
// http://www.webreference.com/dhtml/diner/realpos4/
function DL_GetElementLeft(eElement)
{
   if (!eElement && this)                    
   {                                         
      eElement = this;                       
   }                                         

   var DL_bIE = document.all ? true : false; 

   var nLeftPos = eElement.offsetLeft;       
   var eParElement = eElement.offsetParent;  

   while (eParElement != null)
   {                                         

      if(DL_bIE)                             
      {
         if( (eParElement.tagName != "TABLE") && (eParElement.tagName != "BODY") )
         {                                   
            nLeftPos += eParElement.clientLeft; 
         }
      }
      else                                   
      {
         if(eParElement.tagName == "TABLE")  
         {                                   
            var nParBorder = parseInt(eParElement.border);
            if(isNaN(nParBorder))            
            {                                
               var nParFrame = eParElement.getAttribute('frame');
               if(nParFrame != null)         
               {
                  nLeftPos += 1;             
               }
            }
            else if(nParBorder > 0)          
            {
               nLeftPos += nParBorder;       
            }
         }
      }
      nLeftPos += eParElement.offsetLeft;    
      eParElement = eParElement.offsetParent; 
   }                                         
   return nLeftPos;                          
}

function DL_GetElementTop(eElement)
{
   if (!eElement && this)                    
   {                                         
      eElement = this;                       
   }                                         

   var DL_bIE = document.all ? true : false; 

   var nTopPos = eElement.offsetTop;         
   var eParElement = eElement.offsetParent;  

   while (eParElement != null)
   {                                         
      if(DL_bIE)                             
      {
         if( (eParElement.tagName != "TABLE") && (eParElement.tagName != "BODY") )
         {                                   
            nTopPos += eParElement.clientTop; 
         }
      }
      else                                   
      {
         if(eParElement.tagName == "TABLE")  
         {                                   
            var nParBorder = parseInt(eParElement.border);
            if(isNaN(nParBorder))            
            {                                
               var nParFrame = eParElement.getAttribute('frame');
               if(nParFrame != null)         
               {
                  nTopPos += 1;              
               }
            }
            else if(nParBorder > 0)          
            {
               nTopPos += nParBorder;        
            }
         }
      }

      nTopPos += eParElement.offsetTop;      
      eParElement = eParElement.offsetParent; 
   }                                         
   return nTopPos;                           
}

/* ----- removed stuff to cancel feedback
if (!document.layers)
document.write("<DIV id=captureClick onClick='cancelFeedback()' style='position:absolute;visibility:hidden;left:0px;top:0px;width:100%;height:100%;z-Index:20;'></DIV>");

function cancelFeedback()
{
	bCancled = true;
	var oCapture = null
	if (document.all)
		oCapture = captureClick;
	else if (document.getElementById)
		oCapture = document.getElementById("captureClick");
	if (oCapture)
		captureClick.style.visibility = "hidden";
		
	uberBar.style.visibility = "hidden";
}
------------------- */