function checkbrow(){
var agt = navigator.userAgent.toLowerCase(); 
	if ((navigator.appVersion.charAt(0) < 4) || (agt.indexOf('webtv') != -1)) {
		alert('please upgrade your browser');
	}
}	 
checkbrow();
//browser status bar
window.defaultStatus = 'Cakewalk';
// ########################### BEGIN DREAMWEAVER CODE ########################### //
	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_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_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_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_reloadPage(init) {  //reloads the window if Nav4 resized
	  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
	    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
	  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
	}
	MM_reloadPage(true);
	function MM_showHideLayers() { //v3.0
	  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')?'visible':(v='hide')?'hidden':v; }
	    obj.visibility=v; }
	}
// ########################### END DREAMWEAVER CODE ########################### //
	
//////////////////////////////////global nav layer swapping

// DETECT BROWSER DOM
var isIE = (document.all) ? true : false;
var isNS4 = (document.layers) ? true:false;
var isNS6 = (document.getElementById && !document.all) ? true : false;
// ASSIGN BROWSER DOM DIFFERENCES
if (isNS4) {
	doc = 'document.layers["';
	sty = '"]';
} else if(isIE) {
  doc = "document.all.";
  sty = ".style";
} else if (isNS6) {
	doc = "document.getElementById('";
  sty = "').style";
}
// GLOBAL VARIABLES
var over = 'no';
var theDiv = '';

// turns previous layer off if any and then turns current layer on (visible)
function on(pic) {
	over = 'yes';
 	if (theDiv != '') {
		eval(doc + theDiv + sty + '.visibility = "hidden"');
  }
  eval(doc + pic + sty + '.visibility = "visible"');
  theDiv = pic;
}
// the reverse of on(). Turns the div called 'theDiv' to hidden (off)
function off()	{
	if (over == 'no')  {
		eval(doc + theDiv + sty + '.visibility = "hidden"');
	}
}
function overChecker(pic) {
	theDiv = pic;
	over = 'no';
	setTimeout("off()", 550);
}

function navOverDiv(divName) {
	over = 'yes';
	thisDiv = divName;
}


function navOver(imgName) {
	eval("document.images['"+imgName+"'].src = '/images/nav_"+imgName+"_on.gif'");
	thisImg = imgName;
}

function navOff() {
	if (thisImg != '') {
		eval("document.images['"+thisImg+"'].src = '/images/nav_"+thisImg+"_off.gif'");
	}
}
function alldropOff() {
	var needLayers = ['productsdrop','purchasedrop','downloaddrop','eventsdrop','devxchangedrop','supportdrop','aboutusdrop'];
	for (i = 0; i < needLayers.length; i++) {
		var templ = needLayers[i];
		MM_showHideLayers(templ,'','hide');
	}
}

function openWindow( url, w, h, name ) {

	optionStr = "scrollbars=no,location=no,toolbar=no,width=" + w + ",height=" + h;
    if (name != "") {
    	helpWindow = window.open( url, name, optionStr );
    } else {
    	helpWindow = window.open( url, "content",optionStr );
    }
}