<!-- hide this script from non-javascript-enabled browsers

var banner_num = 0;
var openId="none";
var doCheck = (document.all!=null);
var leftrotate = 0;
var toprotate = 0;


if (document.images)
{
  preload_image_object = new Image();
  // set image url
  image_url = new Array();
  image_url[0] = "/images/menuup.gif";
  image_url[1] = "/images/menudown.gif";
  image_url[2] = "/images/menuleft.gif";
  image_url[3] = "/images/menushadow.gif";
  image_url[4] = "/images/menuleftover.gif";

   var i = 0;
   for(i=0; i<=4; i++) 
	 preload_image_object.src = image_url[i];
}
  
  


if (doCheck == false) {
	versionNN = navigator.appVersion;
	if (versionNN.search(/5.0/i) == -1) {
		browser = "NN4";
	} else {
		browser = "NN6";
	}
} else {
	browser = "IE";
}

function rollOver(name) {
		var a = document.getElementById(name+'A');
		var img = document.getElementById(name+'Img');
		//var td = document.getElementById(name);
		//td.style.backgroundImage="url(images/buttonbgsel.jpg)";
		a.style.color="yellow";
		img.src='/images/menudown.gif';
}

function rollOut(name) {
	var a = document.getElementById(name+'A');
	var img = document.getElementById(name+'Img');
	//var td = document.getElementById(name);
	//td.style.backgroundImage="url(images/buttonbg.gif)";
	a.style.color="white";
	img.src='/images/menuup.gif';
}

function getLayer(id) {        
   	if (browser == "IE")
   		return document.all[id];
   	else if (browser == "NN4")
		return document.layers[id];
	else
		return document.getElementById(id); 	
}

function showLayer(id) {        
   var get = getLayer(id+'Div')
   var td = getLayer(id)
   var pos = findPos(td)
   if (get != null)          
     	if (browser == "IE" || browser == "NN6") {
			get.style.left = pos[0] + 8;
         	get.style.visibility = "visible";
      	} else if (browser == "NN4")
         	get.visibility = "show";
}     
  
function hideLayer(id) {
	var get = getLayer(id)        
	if (get != null)        
      if (browser == "IE" || browser == "NN6")
         get.style.visibility = "hidden";
      else
         get.visibility = "hide";
}

function getnavmenu(id,div) {
	if (div == 'true') {
		idDiv = id+'Div';
		if (openId == 'none') {
			showLayer(id);
			rollOver(id);
			openId = id;
			openIdDiv = idDiv;
		} else {
			hideLayer(openIdDiv);
			rollOut(openId);
			showLayer(id);
			rollOver(id);
			openId = id;
			openIdDiv = idDiv;
		}
	} else {
		if (openId == 'none') {
			rollOver(id);
		} else {
			hideLayer(openIdDiv);
			rollOut(openId);
			rollOver(id);
			openId = 'none';
		}
	}
}

function divrollover(name) {
	openId = name;
	showLayer(openId);
	rollOver(openId);
}

function divrollout(name) {
	hideLayer(name+'Div');
	rollOut(name);
	openId = 'none';
	openIdDiv = 'none';
}

function closebut(name) {
	hideLayer(name+'Div');
	rollOut(name);
	openId = 'none';
	openIdDiv = 'none';
}


function findPos(obj) {
	var curleft = curtop = 0;
	if (obj.offsetParent) {
		curleft = obj.offsetLeft
		curtop = obj.offsetTop
		while (obj = obj.offsetParent) {
			curleft += obj.offsetLeft
			curtop += obj.offsetTop
		}
	}
	return [curleft,curtop];
}


function adrotate(type) {
	var rnum=Math.floor(Math.random()*5);
	if (type == 'top' && document.getElementById('topbanner') && toprotate == 0) {
		toprotate = 1;
		var banner = document.getElementById('topbanner');
		var abanner = document.getElementById('atopbanner');
		if (rnum == 0) {
			banner.src = "/images/banners/racktop.jpg";
			abanner.href = "/racks.shtml";
		} else if (rnum == 1) {
			banner.src = "/images/banners/labstop.jpg";
			abanner.href = "/scenarios.shtml";
		} else if (rnum == 2) {
			banner.src = "/images/banners/netequiptop.jpg";
			abanner.href = "/forsale.shtml";
		} else if (rnum == 3) {
			abanner.href = "consulting.shtml";
			banner.src = "/images/banners/consulttop.jpg";
		} else {
			abanner.href = "discounts.shtml";
			banner.src = "/images/banners/packagestop.jpg";
		}
		banner.style.display='';
	} else if (type == 'left' && document.getElementById('leftbanner') && leftrotate == 0) {
		leftrotate = 1;
		var banner = document.getElementById('leftbanner');
		var abanner = document.getElementById('aleftbanner');
		if (rnum == 0) {
			banner.src = "/images/banners/rack.gif";
			abanner.href = "/racks.shtml";
		} else if (rnum == 1) {
			banner.src = "/images/banners/labs.gif";
			abanner.href = "/scenarios.shtml";
		} else if (rnum == 2) {
			banner.src = "/images/banners/networkequip.gif";
			abanner.href = "/forsale.shtml";
		} else if (rnum == 3) {
			abanner.href = "consulting.shtml";
			banner.src = "/images/banners/consulting.gif";
		} else {
			abanner.href = "discounts.shtml";
			banner.src = "/images/banners/discounts.gif";
		}
		banner.style.display='';
	}


}