// Fisheye
var fisheyemenu = {
	startWidthSize : 23,
	endWidthSize : 28,
	startHeightSize : 22,
	endHeightSize : 27,
	imgType : ".gif",
	init : function () {
		var animElements = document.getElementById("fisheye_menu").getElementsByTagName("img");
		var titleElements = document.getElementById("fisheye_menu").getElementsByTagName("span");
		for(var j=0; j<titleElements.length; j++) {
			titleElements[j].style.display = 'none';
		}
		for(var i=0; i<animElements.length; i++) {
			var y = animElements[i];
			y.style.width = fisheyemenu.startWidthSize+'px';
			y.style.height = fisheyemenu.startHeightSize+'px';
			fisheyemenu.imgSmall(y);
			animElements[i].onmouseover = changeSize;
			animElements[i].onmouseout = restoreSize;
		}
		function changeSize() {
			fisheyemenu.imgLarge(this);
			var x = this.parentNode.getElementsByTagName("span");
			x[0].style.display = 'block';
			if (!this.currentWidth) this.currentWidth = fisheyemenu.startWidthSize;
			if (!this.currentHeight) this.currentHeight = fisheyemenu.startHeightSize;
			fisheyemenu.resizeAnimation(this,this.currentWidth,fisheyemenu.endWidthSize,3,15,0.333,this.currentHeight,fisheyemenu.endHeightSize);
		}
		function restoreSize() {
			var x = this.parentNode.getElementsByTagName("span");
			x[0].style.display = 'none';
			if (!this.currentWidth) return;
			fisheyemenu.resizeAnimation(this,this.currentWidth,fisheyemenu.startWidthSize,3,15,0.5,this.currentHeight,fisheyemenu.startHeightSize);
			fisheyemenu.imgSmall(this);
		}
	},
	resizeAnimation : function (elem,startWidth,endWidth,steps,intervals,powr,startHeight,endHeight) {
		if (elem.widthChangeMemInt) window.clearInterval(elem.widthChangeMemInt);
		var actStep = 0;
		elem.widthChangeMemInt = window.setInterval(
			function() {
				elem.currentWidth = fisheyemenu.easeInOut(startWidth,endWidth,steps,actStep,powr);
				elem.currentHeight = fisheyemenu.easeInOut(startHeight,endHeight,steps,actStep,powr);
				elem.style.width = elem.currentWidth+"px";
				elem.style.height = elem.currentHeight+"px";
				actStep++;
				if (actStep > steps) window.clearInterval(elem.widthChangeMemInt);
			}
			,intervals)
	},
	easeInOut : function (minValue,maxValue,totalSteps,actualStep,powr) {
	//Generic Animation Step Value Generator By www.hesido.com
		var delta = maxValue - minValue;
		var stepp = minValue+(Math.pow(((1 / totalSteps)*actualStep),powr)*delta);
		return Math.ceil(stepp)
	},
	imgSmall : function (obj) {
		imgSrc = obj.getAttribute("src");
		var typePos = imgSrc.indexOf(fisheyemenu.imgType, 0);
		var imgName = imgSrc.substr(0, typePos);
		obj.setAttribute("src", imgName+"_off"+fisheyemenu.imgType);
	},
	imgLarge : function (obj) {
		imgSrc = obj.getAttribute("src");
		var typePos = imgSrc.indexOf("_off", 0);
		var imgName = imgSrc.substr(0, typePos);
		obj.setAttribute("src", imgName+fisheyemenu.imgType);
	}
}

// Add event with wide browser support
if ( typeof window.addEventListener != "undefined" )
    window.addEventListener( "load", fisheyemenu.init, false );
else if ( typeof window.attachEvent != "undefined" )
    window.attachEvent( "onload", fisheyemenu.init );
else {
    if ( window.onload != null ) {
        var oldOnload = window.onload;
        window.onload = function ( e ) {
            oldOnload( e );
            fisheyemenu.init();
        };
    }
    else
        window.onload = popUpCal.init;
}

//Gerencia visibilidade das layers

function MM_findObj(n, d) { //v4.0
  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 && document.getElementById) x=document.getElementById(n); return x;
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'block':(v=='hide')?'none':v; }
    obj.display=v; }
}