////////////////////////////////////////////////////////////////////////////////
   ///// ///    Picklist.js -- (C) 1999,2003 by Ralph L. Brown (akakEk)     ///// ///
  /////   ///   This script, with copyright notice intact, may be freely   /////   ///
 /////     ///  distributed and used for any legal and legitimate         /////     ///
  /////   ///   purpose(s) except for the distribution of unsolicited      /////   ///
   ///// ///    email (spam) and the publication of pornographic content.   ///// ///
    ////////////////////////////////////////////////////////////////////////////////


var UNDEFINED;  // do not assign!

function getX(obj)
{
   return( obj.offsetParent==null ? obj.offsetLeft : obj.offsetLeft+getX(obj.offsetParent) );
}

function getY(obj)
{
   return( obj.offsetParent==null ? obj.offsetTop : obj.offsetTop+getY(obj.offsetParent) );
}

function isvalidchar(achar,validstr)
{
   if ( !validstr ) validstr = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 `~!@#$%^&*()_-+={}[]|:;'<>,./?\\\"";
   return( validstr.toUpperCase().indexOf(achar.toString().toUpperCase(),0) >= 0 );
}

function getQualifiedName(formElement)
{
   var i = -1, f = formElement.form.elements;

   while( f[++i] != formElement );

   return "document.forms['" + formElement.form.name + "'].elements[" + i + "]";
}

function getTooltipDiv()
{
   if ( document.getElementById )
      return document.getElementById('divPicklistTooltip');
   else if ( document.all )
      return document.all.divPicklistTooltip;
   else return null;
}

function createTooltipDiv(objSel)
{
   if ( !getTooltipDiv() )  // if this is the first time this function is
   {                        // called then create the tooltip text window.
      var tooltipDiv = "<DIV id='divPicklistTooltip' style='position:absolute;top:0px;left:0px;visibility:hidden'></div>";

      if ( document.body.insertAdjacentHTML )
      {
      	 document.body.insertAdjacentHTML("beforeEnd",tooltipDiv);
      }
      else if ( document.createTextNode )
      {
		 var div = document.createElement("div");
		 div.innerHTML = tooltipDiv;
         document.body.appendChild(div);
      }
      else if ( document.body.innerHTML )
      {
         document.body.innerHTML += tooltipDiv;
      }

      // necessary for netscape (don`t know why)
	  //setTimeout( "setupPicklist(" + getQualifiedName(objSel) + ")", 1 );

      return true;
   }

   return false;
}

function showTooltipText(objSel)
{
   if ( !objSel || objSel.Y==UNDEFINED )  // null or not setup
   {
      return false;
   }

   var divPicklistTooltip = getTooltipDiv();
   var s = divPicklistTooltip.innerHTML = "";

   with ( objSel )
   {
      if ( strKeyInBuf=="" && title.length )
      {
         s = '<FONT color="blue">' + title + '</font>';
      }
      else if ( selectedIndex>=0 && strKeyInBuf==options[selectedIndex].text )  // unique match found
      {
         s = '<B>' + strKeyInBuf + '</b>';
      }
      else
      {
         var c = strKeyInBuf.substring(strKeyInBuf.length-1,strKeyInBuf.length);
         c = ( c == ' ' ) ? '&nbsp;' : '<B>' + c + '</b>';
         s = strKeyInBuf.substring(0,strKeyInBuf.length-1) + c;
      }

      divPicklistTooltip.innerHTML = '<TABLE cellpadding=0 cellspacing=0>'
        + '<TR><TD style="background-color:INFOBACKGROUND;'
        + 'font:8pt ms sans serif;padding:2px 2px 2px 2px;color:INFOTEXT;border:1px solid INFOTEXT;text-align:left;"><NOBR>'+s+'</nobr></td></tr></table>';

      divPicklistTooltip.style.posLeft = divPicklistTooltip.style.left = (X + divPicklistTooltip.offsetWidth < document.body.clientWidth ? X : document.body.clientWidth - divPicklistTooltip.offsetWidth - 3);
      divPicklistTooltip.style.posTop  = divPicklistTooltip.style.top  = Y;
	  hideConcurrentLayers(null);
	  hideElement("SELECT", divPicklistTooltip);
	  hideElement("APPLET", divPicklistTooltip);
      divPicklistTooltip.style.visibility = "";

   } // end with

   return true;
}

function hideTooltipText(objSel)
{
   if (objSel) objSel.strKeyInBuf = "";
   var divPicklistTooltip = getTooltipDiv();
   showElement("SELECT");
   showElement("APPLET");
   return divPicklistTooltip.innerHTML = "";
}

function findSelectEntry( objSel, head, tail )  // uses divide-and-conquer search, assumes sorted list
{
   with ( objSel )
   {
      if ( options.length <= 0 )
      {
         strKeyInBuf = ' <FONT color="red">No selections available.</font> ';
         showTooltipText(objSel);
         top.status = strKeyInBuf = "";
         return -1;
      }

      if ( strKeyInBuf == "" )
      {
         showTooltipText(objSel);

         picklistChange(objSel, 0);
         picklistChange(objSel, options[selectedIndex].text.length ? -1 : 0);

         return( selectedIndex );
      }

	  var index = null;
	  var match_count = 0;
	  for (var i = 0; i < options.length; i++)
	  {
		 if (strKeyInBuf.toUpperCase() == options[i].text.substring(0,strKeyInBuf.length).toUpperCase() ) {
			 match_count++;
			 if (index === null)
			 {
				 index = i; // first match
			 }
		 }
	  }

	  if (index !== null)
	  {
         picklistChange(objSel, index);

		 if (match_count == 1) { // unique match found
			top.status = strKeyInBuf = options[index].text;  
		 } else {
			top.status = strKeyInBuf = options[index].text.substring(0,strKeyInBuf.length);
		 }
		 showTooltipText(objSel);
		 return selectedIndex;
	  } else { // then since no exact match was found, go back to previous strKeyInBuf (thus the length-1)
         strKeyInBuf = strKeyInBuf.substring(0,strKeyInBuf.length-1)
         return findSelectEntry( objSel );
      }
   }  // end with
}

function picklistFocusHandler(e)
{
   var event = e ? e : window.event;  // to handle both NS and IE events
   var objSel = event.target ? event.target : event.srcElement;
   picklistFocusHandler.objSel = objSel;

   // update data elements
   objSel.X = getX(objSel)+2;
   objSel.Y = getY(objSel)-20;
   objSel.strKeyInBuf = "";

   // display the tooltip help (the title attribute by default)
   showTooltipText(objSel);
}

function picklistBlurHandler(e)
{
   var event = e ? e : window.event;  // to handle both NS and IE events
   var objSel = event.target ? event.target : event.srcElement;
   picklistFocusHandler.objSel = null;

   top.status = (objSel.selectedIndex>-1) ? objSel.options[objSel.selectedIndex].text : "";
   hideTooltipText(objSel);

   return true;
}

function picklistMouseOverHandler(e)
{
   var event = e ? e : window.event;  // to handle both NS and IE events
   var objSel = event.target ? event.target : event.srcElement;

   showTooltipText(objSel);

   return true;
}

function picklistMouseOutHandler(e)
{
   var event = e ? e : window.event;  // to handle both NS and IE events
   var objSel = event.target ? event.target : event.srcElement;

   if ( objSel==picklistFocusHandler.objSel || objSel==document.activeElement )
      return true;

   hideTooltipText();

   return true;
}

function picklistKeyDownHandler(e)
{
   var event = e ? e : window.event;  // to handle both NS and IE events
   var objSel = event.target ? event.target : event.srcElement;
   var divPicklistTooltip = getTooltipDiv();

   with ( objSel )
   {
      // this is to correct the search bug when the list is left open after single-click
      if ( strKeyInBuf=="" && event.keyCode>40 )
      {
         objSel.blur();
         objSel.focus();
      }

      switch(event.keyCode)
      {
        case(8):  // backspace
        {
           if ( selectedIndex>=0 && strKeyInBuf==options[selectedIndex].text )
           {
              top.status = strKeyInBuf = "";
           }
           else
           {
              top.status = strKeyInBuf = strKeyInBuf.substring(0,strKeyInBuf.length-1);
           }

           picklistChange(objSel, findSelectEntry(objSel));

           event.keyCode = 0;
           return false;
        }

        case(9):   // tab
        case(13):  // enter
        {
        	try {
				event.keyCode = 9;  // convert enter to tab
			} catch ( ex) {};
           return true;
        }

        case(27):  // escape
        {
           top.status = strKeyInBuf = "";
           picklistChange(objSel, 0);
           picklistChange(objSel, options[selectedIndex].text.length ? -1 : 0);
           showTooltipText(objSel);

           event.keyCode = 0;
           return false;
        }

        case(32):  // space
        {
           top.status = strKeyInBuf += ' ';
           // this must be fired explicitely for spaces
           return picklistKeyPressHandler(event);
        }

        // I don't know if these are universal
        case(33):  // page up
        case(34):  // page down
        case(35):  // end
        case(36):  // home
        case(37):  // left arrow
        case(38):  // up arrow
        case(39):  // right arrow
        case(40):  // down arrow
        {
           top.status = hideTooltipText(objSel);
           return true;
        }

      }  // end switch
   }  // end with

   return true;
}

function picklistKeyPressHandler(e)
{
   var event = e ? e : window.event;  // to handle both NS and IE events
   var objSel = event.target ? event.target : event.srcElement;
   var inputChar = String.fromCharCode(event.keyCode ? event.keyCode : event.charCode);

   if ( inputChar=='\n' || inputChar=='\r' )
   {
      top.status = objSel.strKeyInBuf = ( objSel.selectedIndex>-1 ? objSel.options[objSel.selectedIndex].text : "" );
   }

   if ( isvalidchar(inputChar) && event.charCode!=0 )
   {
      objSel.strKeyInBuf += inputChar;

      // must use setTimeout to override the default SELECT keypress event(s)
      setTimeout( "findSelectEntry(" + getQualifiedName(objSel) +")", 1 );
   }

   return false;
}

function setupPicklist(objSel)
{
   if ( !document.all && !document.getElementById )
      return false;  // browser not supported

   if ( !objSel || (""+objSel.type).substring(0,6).toLowerCase()!="select" )
      return false;  // null or not a select
   //alert('setup : ' + objSel.form);
   createTooltipDiv(objSel);

   // create/init data elements
   objSel.X = getX(objSel)+2;
   objSel.Y = getY(objSel)-20;
   objSel.strKeyInBuf = "";

   // setup event handlers
   objSel.onclick     = function(){top.status=hideTooltipText(this);}
   objSel.onfocus     = picklistFocusHandler;
   objSel.onblur      = picklistBlurHandler;
   objSel.onmouseover = picklistMouseOverHandler;
   objSel.onmouseout  = picklistMouseOutHandler;
   objSel.onkeydown   = picklistKeyDownHandler;
   objSel.onkeypress  = picklistKeyPressHandler;
   objSel.onkeyup     = null;

   return true;
}

function picklistChange(objSel, newindex)
{
   if( objSel.selectedIndex != newindex ) {
      objSel.selectedIndex = newindex; 
      if (typeof objSel.onchange == "function") {
         objSel.onchange();
      }
   }
}

function setupPickListAll() {
	
	var fs = document.forms;
	for (var i = 0; i < fs.length; i++) {
		var f = fs[i].elements;
		for (var j = 0; j < f.length; j++) {
			if (f[j].type == 'select-one') {
				if (!f[j].title) {
					f[j].title = "Please type value in the pick-list below";
				}
				setupPicklist(f[j]);
			}
		}
	}
}

addOnLoadFunc(setupPickListAll);