window.onload = function() {
	//deal with tablinks
	$$('#nav ul li img').each(function(el,index) {
		//preload
		if (el == undefined) { return false; }
		MM_preloadImages(Meltwater.images.activateSrc(el),Meltwater.images.deactivateSrc(el),Meltwater.images.hoverSrc(el));
		el.onmouseover = function () { Meltwater.images.hover(this); };
		el.onmouseout = function () { if (!this.hasClassName('selected')) { Meltwater.images.deactivate(this); } };
	});
//	
};

var Meltwater = {
	images: {
		swap: function(for_el,to) {
			$(for_el).src = to;
		},
		activate: function (for_el) {
			return this.swap(for_el,this.activateSrc(for_el));
		},
		deactivate: function (for_el) {
			return this.swap(for_el,this.deactivateSrc(for_el));		
		},
		hover: function (for_el) {
			return this.swap(for_el,this.hoverSrc(for_el));
		},
		replaceSrc: function (for_el,search,replace_with) {
			return $(for_el).src.replace(search,replace_with);
		},
		activateSrc: function (for_el) {
			return this.replaceSrc(for_el,/_un/,'_over');
		},
		deactivateSrc: function (for_el) {
			return this.replaceSrc(for_el,/_over/,'_un');
		},
		hoverSrc: function (for_el) {
			return this.replaceSrc(for_el,/_un/,'_over');
		},
		restore: function (for_el) {
			MM_swapImgRestore();
		}
	}
};
Element.addMethods({
	toggleClass: function(elem,css) { 
		if (Element.hasClassName(elem,css)) {
			Element.removeClassName(elem,css);
		} else {
			Element.addClassName(elem,css);
		}
	},
	children: function(elem) {
		return $A($(elem).childNodes).findAll(function (val,ind) { return val });
	}
});

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];}
}