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) { //v4.01
  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];}
}

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() { //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')?'inline':(v=='hide')?'none':v; }
    obj.display=v; }
}





function trim(str) {
	return( (""+str).replace(/^\s*([\s\S]*\S+)\s*$|^\s*$/,'$1') );
}


function contact() {
	var window_name = "contactUs";
	var window_url = "http://www2.opticalexpress.com/contactus/default.html";	
	var window_options = "toolbar=no,location=no,status=yes,menubar=no,scrollbars=no,resizable=no,top=60,left=30,width=500,height=400";
	if (window.window_name) {			
		if (window_name.closed) {
			window_name = window.open(window_url,window_name,window_options);	
			window_name.focus();
		}
		else 
			window_name.focus();
	}	
	else {
		window_name = window.open(window_url,window_name,window_options);	
		window_name.focus();
	}		
}

sfHover = function() {
	var sfEls = document.getElementById("navcontainer").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
/* if (window.attachEvent) window.attachEvent("onload", sfHover);*/

function VRO_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.VRO_p) d.VRO_p=new Array();
    var i,j=d.VRO_p.length,a=VRO_preloadImages.arguments; for(i=0; i<a.length; i++)
    { d.VRO_p[j]=new Image; d.VRO_p[j++].src=a[i];}}
}

var VRO_chg_it_img_num=0;
var VRO_chg_it_delay=4000;

function VRO_change_it()
{
   var d=document;
   if (d.images)
   {
      /* width='"+pic_width+"' height='"+pic_height+"'  */
      /* d.write("<img src='' border='0' name='img1' >\n"); */
      setTimeout('VRO_change_it2()',VRO_chg_it_delay);  
   }
}


function VRO_change_it2()
{
   var d=document;
   if (d.images)
   {
      if (!d.VRO_p) d.VRO_p=new Array();
      VRO_chg_it_img_num+=1;

      if (VRO_chg_it_img_num>d.VRO_p.length-1)
         VRO_chg_it_img_num=0;

      d.images['img1'].src=d.VRO_p[VRO_chg_it_img_num].src;
      setTimeout('VRO_change_it2()',VRO_chg_it_delay);  
   }
}

function openPopup(url, width, height)
{
	popupWin = window.open(url,"popupWin","scrollbars=0, width=" + width + ", height=" + height);
	popupWin.focus();
}