Ajax.Responders.register({
  onCreate: function() {
    if($('busy') && Ajax.activeRequestCount>0)
      Effect.Appear('busy',{duration:0.5,queue:'end'});
  },
  onComplete: function() {
    if($('busy') && Ajax.activeRequestCount==0)
      Effect.Fade('busy',{duration:0.5,queue:'end'});
  }
});


/* javascript function to update form field
 *  field		form field that is being counted
 *  count		form field that will show characters left
 *  maxchars 	maximum number of characters	
*/
function characterCount(field, fieldtoupdate, maxchars) {
	if (field.value.length > maxchars) {
		field.value = field.value.substring(0, maxchars);
		alert("Error:\n\nYou are only allowed to enter up to "+maxchars+" characters.");
	} else {
/*		count.value = */
		document.getElementById(fieldtoupdate).innerHTML = maxchars - field.value.length;
	}
}

function scrollStatus() {
	window.scrollTo(0,0);
	new Effect.Appear('status');
}

function showBox(){
    center('search_box');
    var arrayPageSize = getPageSize();
	var arrayPageScroll = getPageScroll();

	// // center loadingImage if it exists
	// if (objLoadingImage) {
	// 	objLoadingImage.style.top = (arrayPageScroll[1] + ((arrayPageSize[3] - 35 - objLoadingImage.height) / 2) + 'px');
	// 	objLoadingImage.style.left = (((arrayPageSize[0] - 20 - objLoadingImage.width) / 2) + 'px');
	// 	objLoadingImage.style.display = 'block';
	// }

	// set height of Overlay to take up whole page and show
	 $('overlay').style.height = (arrayPageSize[1] + 'px');
     $('overlay').style.display = 'block';
    center('search_box');

	
}

function hideBox(){
    $('search_box').hide();
    $('overlay').hide();
    return false;
}

function center(element){
    try{
        element = $(element);
    }catch(e){
        return;
    }

    var my_width  = 0;
    var my_height = 0;

    if ( typeof( window.innerWidth ) == 'number' ){
        my_width  = window.innerWidth;
        my_height = window.innerHeight;
    }else if ( document.documentElement && 
             ( document.documentElement.clientWidth ||
               document.documentElement.clientHeight ) ){
        my_width  = document.documentElement.clientWidth;
        my_height = document.documentElement.clientHeight;
    }
    else if ( document.body && 
            ( document.body.clientWidth || document.body.clientHeight ) ){
        my_width  = document.body.clientWidth;
        my_height = document.body.clientHeight;
    }

    element.style.position = 'absolute';
    element.style.zIndex   = 99;

    var scrollY = 0;

    if ( document.documentElement && document.documentElement.scrollTop ){
        scrollY = document.documentElement.scrollTop;
    }else if ( document.body && document.body.scrollTop ){
        scrollY = document.body.scrollTop;
    }else if ( window.pageYOffset ){
        scrollY = window.pageYOffset;
    }else if ( window.scrollY ){
        scrollY = window.scrollY;
    }

    var elementDimensions = Element.getDimensions(element);

    var setX = ( my_width  - elementDimensions.width  ) / 2;
    var setY = ( my_height - elementDimensions.height ) / 2 + scrollY;

    setX = ( setX < 0 ) ? 0 : setX;
    setY = ( setY < 0 ) ? 0 : setY;

    element.style.left = setX + "px";
    element.style.top  = setY + "px";

    element.style.display  = 'block';
}

//
// getPageScroll()
// Returns array with x,y page scroll values.
// Core code from - quirksmode.org
//
function getPageScroll(){

	var yScroll;

	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
	} else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
	}

	arrayPageScroll = new Array('',yScroll) 
	return arrayPageScroll;
}



//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.org
// Edit for Firefox by pHaez
//
function getPageSize(){
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}


	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}

var swfu;
Event.observe(window, 'load', init, false);
function init() {
	/***
	if ($('message_attachments_stuff')) {
		var settings = {
			flash_url : "/flash/swfupload.swf",
			upload_url: "/admin/message/upload_attachment",	// Relative to the SWF file // or absolute?
			post_params: {"id" : "something"},
			file_size_limit : "10 MB",
			file_types : "*.*",
			file_types_description : "All Files",
			file_upload_limit : 100,
			file_queue_limit : 0,
			custom_settings : {
				progressTarget : "fsUploadProgress",
				cancelButtonId : "btnCancel",
				upload_target : "uploadTargetSpan"
			},
			debug: false,
        
			flash_container_id : "flash_container",
			// Button settings
			//button_image_url: "../simpledemo/images/TestImageNoText_65x29.png",	// Relative to the Flash file
			button_width: "165",
			button_height: "29",
			button_placeholder_id: "spanButtonPlaceHolder",
			button_text: '<span class="theFont">Add Attachments</span>',
			button_text_style: ".theFont { font-size: 16; color:#000000; }",
			button_text_left_padding: 12,
			button_text_top_padding: 3,
        	
			// Event Handler Settings - these functions as defined in Handlers.js
  			//  The handlers are not part of SWFUpload but are part of my website and control how
  			//  my website reacts to the SWFUpload events.
  			file_queue_error_handler : fileQueueError,
  			file_dialog_complete_handler : fileDialogComplete,
  			upload_progress_handler : uploadProgress,
  			upload_error_handler : uploadError,
  			upload_success_handler : uploadSuccess,
  			upload_complete_handler : uploadComplete


			// The event handler functions are defined in handlers.js
			swfupload_loaded_handler : swfuLoaded,
			file_queued_handler : fileQueued,
			file_queue_error_handler : fileQueueError,
			file_dialog_complete_handler : fileDialogComplete,
			upload_start_handler : SWFUpload.uploadStart,
			upload_progress_handler : uploadProgress,
			upload_error_handler : uploadError,
			upload_success_handler : uploadSuccess,
			upload_complete_handler : uploadComplete,
			queue_complete_handler : queueComplete	// Queue plugin event
			
		};
		swfu = new SWFUpload(settings);  
	}
	***/
}