<!--

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}


function enableButton( bt ) {
	new Effect.Opacity( bt, {to:1, duration:.5} ); $(bt).removeClassName('default-cursor');
}
function disableButton( bt ) {
	new Effect.Opacity( bt, {to:.5, duration:.5} ); $(bt).addClassName('default-cursor');
}


/*$(document).ready(function(){
	$('#toggleDesaturate').click(function(){
		var imgObj = document.getElementById('image');
		
		if($.browser.msie){
			grayscaleImageIE(imgObj);
		} else {
			imgObj.src = grayscaleImage(imgObj);
		}           
	});
});
*/
function grayscaleImageIE(imgObj)
{
	imgObj.style.filter = 'progid:DXImageTransform.Microsoft.BasicImage(grayScale=1)';
}

function grayscaleImage(imgObj)
{
	var canvas = document.createElement('canvas');
	var canvasContext = canvas.getContext('2d');
	
	var imgW = imgObj.width;
	var imgH = imgObj.height;
	canvas.width = imgW;
	canvas.height = imgH;
	
	canvasContext.drawImage(imgObj, 0, 0);
	var imgPixels = canvasContext.getImageData(0, 0, imgW, imgH);
	
	for(var y = 0; y < imgPixels.height; y++){
		for(var x = 0; x < imgPixels.width; x++){
			var i = (y * 4) * imgPixels.width + x * 4;
			var avg = (imgPixels.data[i] + imgPixels.data[i + 1] + imgPixels.data[i + 2]) / 3;
			imgPixels.data[i] = avg; 
			imgPixels.data[i + 1] = avg; 
			imgPixels.data[i + 2] = avg;
		}
	}
	
	canvasContext.putImageData(imgPixels, 0, 0, 0, 0, imgPixels.width, imgPixels.height);

	imgObj.src = canvas.toDataURL();
	imgObj.fade({to:.6});
}

//-->