// switcher

var totalProds = 5;

function swProdsOff(exceptIndex) {
	
	for (i=0; i<totalProds; i++) {
		if (i != exceptIndex) {
			e = document.getElementById("prod" + i);
			newSrc = e.src.substr(0,e.src.indexOf("_on")) + "_off.jpg";
			e.src = newSrc;
		}
	}
	
}

function swProdsOn(exceptIndex) {

	for (i=0; i<totalProds; i++) {
		if (i != exceptIndex) {
			e = document.getElementById("prod" + i);
			newSrc = e.src.substr(0,e.src.indexOf("_off")) + "_on.jpg";
			e.src = newSrc;
		}
	}
	
}

function doWidthChangeMem(elem,startWidth,endWidth,steps,intervals,powr) { 

	if (elem.widthChangeMemInt) {
		window.clearInterval(elem.widthChangeMemInt);
	}

	var actStep = 0;
	elem.widthChangeMemInt = window.setInterval(
		function() { 
			elem.currentWidth = easeInOut(startWidth,endWidth,steps,actStep,powr);
			elem.style.width = elem.currentWidth + "px"; 
			/*** added to compensate for relative position ***/
			myMarginLeft = elem.currentWidth - 140;
			myMarginLeftString = "";
			if (myMarginLeft > 0) {
			    myMarginLeftString = "-";
			    myMarginLeftString += myMarginLeft;
			    myMarginLeftString += "px";
		        elem.style.marginLeft = myMarginLeftString;
		    }
			actStep++;
			if (actStep > steps) {
			    if (endWidth == 134) {
			        elem.style.marginLeft = "6px";
			    }
				window.clearInterval(elem.widthChangeMemInt);
			}
		} 
	,intervals)
}

function widthChange(myElement) {
	if (document.getElementById("prodNav") != undefined) {
		setZIndex("prodNav",0);
	}
    if (!myElement.currentWidth) myElement.currentWidth = 134; 
	doWidthChangeMem(myElement,myElement.currentWidth,604,10,10,0.5); 
} 

function widthRestore(myElement) { 
	if (document.getElementById("prodNav") != undefined) {
		setZIndex("prodNav",9);
	}
    if (!myElement.currentWidth) return; 
	doWidthChangeMem(myElement,myElement.currentWidth,134,10,10,0.5); 
}

function easeInOut(minValue,maxValue,totalSteps,actualStep,powr) {
	var delta = maxValue - minValue;
	var stepp = minValue+(Math.pow(((1 / totalSteps)*actualStep),powr)*delta);
	return Math.ceil(stepp)
}

function setZIndex(objName,index) {
	var e = document.getElementById(objName);
	e.style.zIndex = index;
}

function sw(objName,imgName) {

	var e = document.getElementById(objName);
	e.src = imgName;

}

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_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_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;
}