showLoader = function()
{
	loaderStyle = $('progressBox').style;
	scrollOffset = document.viewport.getScrollOffsets();
	posY = ((document.viewport.getHeight() - 75) / 2) + scrollOffset[1];
	loaderStyle.top = posY + "px";
	
	new Effect.Appear('progressBox', {duration:0.4});
}

hideLoader = function()
{
	$('progressBox').hide();
}

paralyze = function(element, message)
{
	element = $(element);
	if(element.id == "" || element.id == null)
	{
		do
		{
			// Generate a unique element ID
			element_id = Math.floor(Math.random()*1000000001);
		} while($(element_id) != null);
		
		element.id = element_id;
	}
	
	overlay = document.createElement("div");
	Element.extend(overlay); // need to do this for IE
	overlay.id = "disable_overlay_" + element.id;
	overlay.className = "ajaxWait";
	overlay.style.display = "none";
	
	if(Prototype.Browser.IE || Prototype.Browser.WebKit)
	{
		scrollOffset = document.viewport.getScrollOffsets();
		overlay.clonePosition(element, { offsetLeft: scrollOffset[0], offsetTop: scrollOffset[1] });
	}
	else
	{
		overlay.clonePosition(element)
	}
	
	if(message != undefined)
	{
		var content = document.createElement("span");
		content.innerHTML = message;
		overlay.appendChild(content);
	}
	
	document.getElementsByTagName("body")[0].appendChild(overlay);
	Effect.Appear(overlay.id, {from: 0.0, to: 0.7, duration:0.3});
};

unParalyze = function(element)
{
	element = $(element);
	if(element == null)
		return;
	
	overlay = $("disable_overlay_" + element.id);
	if(overlay == null)
		return;

	overlay.remove();
};

toggleCategory = function(element, div)
{
	Effect.toggle(div, 'slide', { duration: 0.3, afterFinish: function(){
		if($(element).hasClassName("active"))
			element.removeClassName("active");
		else
			element.addClassName("active");
	}});
};

function tabOn(id) 
{
	var classname = document.getElementById(id);
	classname.style.background = '#596aa1';
	classname.style.color = '#FFFFFF';
} 

function tabOff(id) 
{
	var classname = document.getElementById(id);
	classname.style.color = '';
	classname.style.background = '';
}

function number_format( number, decimals, dec_point, thousands_sep ) {
    var n = number, prec = decimals;
    n = !isFinite(+n) ? 0 : +n;
    prec = !isFinite(+prec) ? 0 : Math.abs(prec);
    var sep = (typeof thousands_sep == "undefined") ? ',' : thousands_sep;
    var dec = (typeof dec_point == "undefined") ? '.' : dec_point;
    var s = (prec > 0) ? n.toFixed(prec) : Math.round(n).toFixed(prec); //fix for IE parseFloat(0.55).toFixed(0) = 0;
    var abs = Math.abs(n).toFixed(prec);
    var _, i;
    if (abs >= 1000) {
        _ = abs.split(/\D/);
        i = _[0].length % 3 || 3;
 
        _[0] = s.slice(0,i + (n < 0)) +
              _[0].slice(i).replace(/(\d{3})/g, sep+'$1');
 
        s = _.join(dec);
    } else {
        s = s.replace('.', dec);
    }
    return s;
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}

function getEventTarget(e) {
	if(e.target)
		targ = e.target;
	else if (e.srcElement)
		targ = e.srcElement;
	if(targ.nodeType == 3) // defeat Safari bug
		targ = targ.parentNode;
	return targ;
}

function greyOut(vis, options) {
  if($$('html.ie').length > 0)
  	return;
  // Pass true to gray out screen, false to ungray
  // options are optional.  This is a JSON object with the following (optional) properties
  // opacity:0-100         // Lower number = less grayout higher = more of a blackout 
  // zindex: #             // HTML elements with a higher zindex appear on top of the gray out
  // bgcolor: (#xxxxxx)    // Standard RGB Hex color code
  // grayOut(true, {'zindex':'50', 'bgcolor':'#0000FF', 'opacity':'70'});
  // Because options is JSON opacity/zindex/bgcolor are all optional and can appear
  // in any order.  Pass only the properties you need to set.
  var options = options || {}; 
  var zindex = options.zindex || 50;
  var opacity = options.opacity || 70;
  var opaque = (opacity / 100);
  var bgcolor = options.bgcolor || '#000000';
  var dark=document.getElementById('darkenScreenObject');
  if (!dark) {
    // The dark layer doesn't exist, it's never been created.  So we'll
    // create it here and apply some basic styles.
    // If you are getting errors in IE see: http://support.microsoft.com/default.aspx/kb/927917
    var tbody = document.getElementsByTagName("body")[0];
    var tnode = document.createElement('div');           // Create the layer.
        tnode.style.position='absolute';                 // Position absolutely
        tnode.style.top='0px';                           // In the top
        tnode.style.left='0px';                          // Left corner of the page
        tnode.style.overflow='hidden';                   // Try to avoid making scroll bars            
        tnode.style.display='none';                      // Start out Hidden
        tnode.id='darkenScreenObject';                   // Name it so we can find it later
    tbody.appendChild(tnode);                            // Add it to the web page
    dark=document.getElementById('darkenScreenObject');  // Get the object.
  }
  if (vis) {
    // Calculate the page width and height 
    if( document.body && ( document.body.scrollWidth || document.body.scrollHeight ) ) {
        var pageWidth = document.body.scrollWidth+'px';
        var pageHeight = document.body.scrollHeight+'px';
    } else if( document.body.offsetWidth ) {
      var pageWidth = document.body.offsetWidth+'px';
      var pageHeight = document.body.offsetHeight+'px';
    } else {
       var pageWidth='100%';
       var pageHeight='100%';
    }   
    //set the shader to cover the entire page and make it visible.
    dark.style.opacity=opaque;                      
    dark.style.MozOpacity=opaque;                   
    dark.style.filter='alpha(opacity='+opacity+')'; 
    dark.style.zIndex=zindex;        
    dark.style.backgroundColor=bgcolor;  
    dark.style.width= pageWidth;
    dark.style.height= pageHeight;
    dark.style.display='block';                          
  } else {
     dark.style.display='none';
  }
}

function activateResize(element) {
    Event.observe(element, 'keyup', function() {
		updateSize(element)
    });
	updateSize(element)
}

function updateSize(element) {
	element = $(element);
	if(((element.getHeight() - 5) < element.scrollHeight) && (element.getHeight() < document.viewport.getHeight()))
	{
		element.style.height = element.getHeight()+15+'px'
		if(element.getHeight() < element.scrollHeight)
		{
			window.setTimeout("updateSize('"+element.id+"')",5)
        }               
	}
}