if(!document.all && navigator.appVersion >= "5"){
var layerRef="document.getElementById";
var styleSwitch=".style";
function showLayer(layerName){
eval(layerRef+'("'+layerName+'")'+styleSwitch+'.visibility="visible"');
}	
function hideLayer(layerName){
eval(layerRef+'("'+layerName+'")'+styleSwitch+'.visibility="hidden"');
}
}
else if (document.layers){
var layerRef="document.layers";
var styleSwitch="";
function showLayer(layerName){
eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="visible"');
}	
function hideLayer(layerName){
eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="hidden"');
}
}
else if (document.all){
var layerRef="document.all";
var styleSwitch=".style";
function showLayer(layerName){
eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="visible"');
}	
function hideLayer(layerName){
eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="hidden"');
}
}


// Removed unless a good reason to put it back in is found
//onload="hideCover();"

function closeAd(){
hideLayer('coverad');
}



function hideCover(){
hideLayer('Covering');
}


//hides all
function hideAll(num){
if (num=="99"){

hideLayer('menua');
//hideLayer('menub');
hideLayer('menuc');
hideLayer('menud');
hideLayer('menue');
hideLayer('menuf');
hideLayer('menug');
hideLayer('menuclosertop');
hideLayer('menucloserbottom');
}
}

function showSome(num){
if (num=="10"){
hideLayer('coverad');
}

if (num=="102"){
hideAll('99');
showLayer('menua');
showLayer('menuclosertop');
showLayer('menucloserbottom');

}else if (num=="104"){
hideAll('99');
showLayer('menub');
showLayer('menuclosertop');
showLayer('menucloserbottom');


}else if (num=="106"){
hideAll('99');
showLayer('menuc');
showLayer('menuclosertop');
showLayer('menucloserbottom');


}else if (num=="108"){
hideAll('99');
showLayer('menud');
showLayer('menuclosertop');
showLayer('menucloserbottom');

}else if (num=="110"){
hideAll('99');
showLayer('menue');
showLayer('menuclosertop');
showLayer('menucloserbottom');

}else if (num=="112"){
hideAll('99');
showLayer('menuf');
showLayer('menuclosertop');
showLayer('menucloserbottom');

}else if (num=="114"){
hideAll('99');
showLayer('menug');
showLayer('menuclosertop');
showLayer('menucloserbottom');



//Clear all  function
}else if (num=="100"){
hideAll('99');

}
}










/* Begin scripts for image rollovers*/

//Main Navigation Rollovers

block101= new Image();
block102= new Image();
block103= new Image();
block104= new Image();
block105= new Image();
block106= new Image();
block107= new Image();
block108= new Image();
block109= new Image();
block110= new Image();
block111= new Image();
block112= new Image();
block113= new Image();
block114= new Image();

block101.src="../tc/images/wrapper/TC_Header_Nav_NewsGlobe_off.gif";
block102.src="../tc/images/wrapper/TC_Header_Nav_NewsGlobe_on.gif";
block103.src="../tc/images/wrapper/TC_Header_Nav_Vectors_off.gif";
block104.src="../tc/images/wrapper/TC_Header_Nav_Vectors_on.gif";
block105.src="../tc/images/wrapper/TC_Header_Nav_TechZones_off.gif";
block106.src="../tc/images/wrapper/TC_Header_Nav_TechZones_on.gif";
block107.src="../tc/images/wrapper/TC_Header_Nav_Event_off.gif";
block108.src="../tc/images/wrapper/TC_Header_Nav_Event_on.gif";
block109.src="../tc/images/wrapper/TC_Header_Nav_Link_off.gif";
block110.src="../tc/images/wrapper/TC_Header_Nav_Link_on.gif";
block111.src="../tc/images/wrapper/TC_Header_Nav_TelcomLib_off.gif";
block112.src="../tc/images/wrapper/TC_Header_Nav_TelcomLib_on.gif";
block113.src="../tc/images/wrapper/TC_Header_Nav_Archive_off.gif";
block114.src="../tc/images/wrapper/TC_Header_Nav_Archive_on.gif";




function MainNavMenu(num){

if (num=="102"){
 document.NewsGlobe.src=block102.src;
// document.Vectors.src=block103.src;
 document.TechZones.src=block105.src;
 document.Event.src=block107.src;
 document.Link.src=block109.src;
 document.TelcomLib.src=block111.src;
 document.Archive.src=block113.src;

}else if (num=="104"){
 document.NewsGlobe.src=block101.src;
// document.Vectors.src=block104.src;
 document.TechZones.src=block105.src;
 document.Event.src=block107.src;
 document.Link.src=block109.src;
 document.TelcomLib.src=block111.src;
 document.Archive.src=block113.src;
  
}else if (num=="106"){
 document.NewsGlobe.src=block101.src;
// document.Vectors.src=block103.src;
 document.TechZones.src=block106.src;
 document.Event.src=block107.src;
 document.Link.src=block109.src;
 document.TelcomLib.src=block111.src;
 document.Archive.src=block113.src;
  
 }else if (num=="108"){
  document.NewsGlobe.src=block101.src;
// document.Vectors.src=block103.src;
 document.TechZones.src=block105.src;
 document.Event.src=block108.src;
 document.Link.src=block109.src;
 document.TelcomLib.src=block111.src;
 document.Archive.src=block113.src;
   
 }else if (num=="110"){
  document.NewsGlobe.src=block101.src;
// document.Vectors.src=block103.src;
 document.TechZones.src=block105.src;
 document.Event.src=block107.src;
 document.Link.src=block110.src;
 document.TelcomLib.src=block111.src;
 document.Archive.src=block113.src;
   
 }else if (num=="112"){
  document.NewsGlobe.src=block101.src;
// document.Vectors.src=block103.src;
 document.TechZones.src=block105.src;
 document.Event.src=block107.src;
 document.Link.src=block109.src;
 document.TelcomLib.src=block112.src;
 document.Archive.src=block113.src;
 
 }else if (num=="114"){
  document.NewsGlobe.src=block101.src;
// document.Vectors.src=block103.src;
 document.TechZones.src=block105.src;
 document.Event.src=block107.src;
 document.Link.src=block109.src;
 document.TelcomLib.src=block111.src;
 document.Archive.src=block114.src; 
 
}else if (num=="199"){
 document.NewsGlobe.src=block101.src;
 //document.Vectors.src=block103.src;
 document.TechZones.src=block105.src;
 document.Event.src=block107.src;
 document.Link.src=block109.src;
 document.TelcomLib.src=block111.src;
 document.Archive.src=block113.src;
 
}
}




//Curent issue header menu Rollovers

block201= new Image();
block202= new Image();
block203= new Image();
block204= new Image();
block205= new Image();
block206= new Image();

block207= new Image();
block208= new Image();
block209= new Image();
block210= new Image();

block201.src="../tc/images/wrapper/TC_Header_CurIss_Amer_off.gif";
block202.src="../tc/images/wrapper/TC_Header_CurIss_Amer_on.gif";
block203.src="../tc/images/wrapper/TC_Header_CurIss_Int_off.gif";
block204.src="../tc/images/wrapper/TC_Header_CurIss_Int_on.gif";
block205.src="../tc/images/wrapper/TC_Header_CurIss_Sub_off.gif";
block206.src="../tc/images/wrapper/TC_Header_CurIss_Sub_on.gif";

block207.src="../tc/images/wrapper/TC_Header_CurIss_Am_Arrow_off.gif";
block208.src="../tc/images/wrapper/TC_Header_CurIss_Am_Arrow_on.gif";
block209.src="../tc/images/wrapper/TC_Header_CurIss_Int_Arrow_off.gif";
block210.src="../tc/images/wrapper/TC_Header_CurIss_Int_Arrow_on.gif";



function issueMenu(num){

if (num=="202"){
 document.Amer.src=block202.src;
 document.Int.src=block203.src;
 document.Sub.src=block205.src;
 document.AmArrow.src=block208.src;
 document.IntArrow.src=block209.src;

}else if (num=="204"){
 document.Amer.src=block201.src;
 document.Int.src=block204.src;
 document.Sub.src=block205.src;
 document.AmArrow.src=block207.src;
 document.IntArrow.src=block210.src;
 
}else if (num=="206"){
 document.Amer.src=block201.src;
 document.Int.src=block203.src;
 document.Sub.src=block206.src;
 document.AmArrow.src=block207.src;
 document.IntArrow.src=block209.src;

 
}else if (num=="299"){
 document.Amer.src=block201.src;
 document.Int.src=block203.src;
 document.Sub.src=block205.src;
 document.AmArrow.src=block207.src;
 document.IntArrow.src=block209.src;
 
}
}


//Utility menu Rollovers


block301= new Image();
block302= new Image();
block303= new Image();
block304= new Image();
block305= new Image();
block306= new Image();
block307= new Image();
block308= new Image();

block301.src="../tc/images/wrapper/TC_Header_Util_About_off.gif";
block302.src="../tc/images/wrapper/TC_Header_Util_About_on.gif";
block303.src="../tc/images/wrapper/TC_Header_Util_Contact_off.gif";
block304.src="../tc/images/wrapper/TC_Header_Util_Contact_on.gif";
block305.src="../tc/images/wrapper/TC_Header_Util_Advertise_off.gif";
block306.src="../tc/images/wrapper/TC_Header_Util_Advertise_on.gif";
block307.src="../tc/images/wrapper/TC_Header_Util_Privacy_off.gif";
block308.src="../tc/images/wrapper/TC_Header_Util_Privacy_on.gif";


function utilMenu(num){

if (num=="302"){
 document.About.src=block302.src;
 document.Contact.src=block303.src;
 document.Advertise.src=block305.src;
 document.Privacy.src=block307.src;


}else if (num=="304"){
 document.About.src=block301.src;
 document.Contact.src=block304.src;
 document.Advertise.src=block305.src;
 document.Privacy.src=block307.src;

 
}else if (num=="306"){
 document.About.src=block301.src;
 document.Contact.src=block303.src;
 document.Advertise.src=block306.src;
 document.Privacy.src=block307.src;
 
 }else if (num=="308"){
 document.About.src=block301.src;
 document.Contact.src=block303.src;
 document.Advertise.src=block305.src;
 document.Privacy.src=block308.src;
 
}else if (num=="399"){
 document.About.src=block301.src;
 document.Contact.src=block303.src;
 document.Advertise.src=block305.src;
 document.Privacy.src=block307.src;

 
}
}



//Edition Menu Rollovers


//block401= new Image();
//block402= new Image();
//block403= new Image();
//block404= new Image();
//block405= new Image();
//block406= new Image();

//block401.src="../tc/images/wrapper/TC_Header_AmEdition_off.gif";
//block402.src="../tc/images/wrapper/TC_Header_AmEdition_on.gif";
//block403.src="../tc/images/wrapper/TC_Header_IntEdition_off.gif";
//block404.src="../tc/images/wrapper/TC_Header_IntEdition_on.gif";
//block405.src="../tc/images/wrapper/TC_Header_EditionPref_off.gif";
//block406.src="../tc/images/wrapper/TC_Header_EditionPref_on.gif";


//function editionMenu(num){

//if (num=="402"){
 //document.AmEdition.src=block402.src;
 //document.IntEdition.src=block403.src;
 //document.EditionPref.src=block405.src;


//}else if (num=="404"){
 //document.AmEdition.src=block401.src;
 //document.IntEdition.src=block404.src;
 //document.EditionPref.src=block405.src;

 
//}else if (num=="406"){
 // document.AmEdition.src=block401.src;
 //document.IntEdition.src=block403.src;
 //document.EditionPref.src=block406.src;

 
//}else if (num=="499"){
// document.AmEdition.src=block401.src;
 //document.IntEdition.src=block403.src;
 //document.EditionPref.src=block405.src;


 
//}
//}



//TechChannels  Rollovers

block501= new Image();
block502= new Image();
block503= new Image();
block504= new Image();
block505= new Image();
block506= new Image();
block507= new Image();
block508= new Image();
block509= new Image();
block510= new Image();
block511= new Image();
block512= new Image();


//sponsor logos
block550= new Image();
block551= new Image();
block552= new Image();
block553= new Image();
block554= new Image();
block555= new Image();
block556= new Image();

block560= new Image();
block561= new Image();
block562= new Image();
block563= new Image();
block564= new Image();
block565= new Image();
block566= new Image();



block501.src="../tc/images/wrapper/TC_TechZ_MobWire_off.jpg";
block502.src="../tc/images/wrapper/TC_TechZ_MobWire_over.jpg";

block503.src="../tc/images/wrapper/TC_TechZ_CarrierServ_off.jpg";
block504.src="../tc/images/wrapper/TC_TechZ_CarrierServ_over.jpg";

block505.src="../tc/images/wrapper/TC_TechZ_BBAccess_off.jpg";
block506.src="../tc/images/wrapper/TC_TechZ_BBAccess_over.jpg";

block507.src="../tc/images/wrapper/TC_TechZ_NetInfra_off.jpg";
block508.src="../tc/images/wrapper/TC_TechZ_NetInfra_over.jpg";

block509.src="../tc/images/wrapper/TC_TechZ_BackOff_off.jpg";
block510.src="../tc/images/wrapper/TC_TechZ_BackOff_over.jpg";

block511.src="../tc/images/wrapper/TC_TechZ_Topics_off.jpg";
block512.src="../tc/images/wrapper/TC_TechZ_Topics_over.jpg";



block550.src="../tc/images/wrapper/TC_TechZ_SponsoredBy.gif";
block551.src="../tc/images/wrapper/TC_TechZ_SponsoredBy1.gif";
block552.src="../tc/images/wrapper/TC_TechZ_SponsoredBy2.gif";
block553.src="../tc/images/wrapper/TC_TechZ_SponsoredBy3.gif";
block554.src="../tc/images/wrapper/TC_TechZ_SponsoredBy4.gif";
block555.src="../tc/images/wrapper/TC_TechZ_SponsoredBy5.gif";
block556.src="../tc/images/wrapper/TC_TechZ_SponsoredBy6.gif";

//block560.src="Ads/TC_TechZ_Spons_AllZones.gif";
//block561.src="Ads/TC_TechZ_Spons_Zone1.gif";
//block562.src="Ads/TC_TechZ_Spons_Zone2.gif";
//block563.src="Ads/TC_TechZ_Spons_Zone3.gif";
//block564.src="Ads/TC_TechZ_Spons_Zone4.gif";
//block565.src="Ads/TC_TechZ_Spons_Zone5.gif";
//block566.src="Ads/TC_TechZ_Spons_Zone6.gif";


function displayTechChannels(num){

if (num=="502"){
 document.MobWire.src=block502.src;
 document.CarrierServ.src=block503.src;
 document.BBAccess.src=block505.src;
 document.NetInfra.src=block507.src;
 document.BackOff.src=block509.src;
 document.Topics.src=block511.src;

 document.SponsoredBy.src=block551.src;
 //document.Sponsor.src=block561.src; 

}else if (num=="504"){
 document.MobWire.src=block501.src;
 document.CarrierServ.src=block504.src;
 document.BBAccess.src=block505.src;
 document.NetInfra.src=block507.src;
 document.BackOff.src=block509.src;
 document.Topics.src=block511.src;
 
 document.SponsoredBy.src=block552.src;
 //document.Sponsor.src=block562.src;
  
  
}else if (num=="506"){
 document.MobWire.src=block501.src;
 document.CarrierServ.src=block503.src;
 document.BBAccess.src=block506.src;
 document.NetInfra.src=block507.src;
 document.BackOff.src=block509.src;
 document.Topics.src=block511.src;
 
 document.SponsoredBy.src=block553.src;
 //document.Sponsor.src=block563.src;
  
  
 }else if (num=="508"){
  document.MobWire.src=block501.src;
 document.CarrierServ.src=block503.src;
 document.BBAccess.src=block505.src;
 document.NetInfra.src=block508.src;
 document.BackOff.src=block509.src;
 document.Topics.src=block511.src;
 
 document.SponsoredBy.src=block554.src;
 //document.Sponsor.src=block564.src; 
   
 }else if (num=="510"){
  document.MobWire.src=block501.src;
 document.CarrierServ.src=block503.src;
 document.BBAccess.src=block505.src;
 document.NetInfra.src=block507.src;
 document.BackOff.src=block510.src;
 document.Topics.src=block511.src;

 document.SponsoredBy.src=block555.src;
 //document.Sponsor.src=block565.src;

   
 }else if (num=="512"){
  document.MobWire.src=block501.src;
 document.CarrierServ.src=block503.src;
 document.BBAccess.src=block505.src;
 document.NetInfra.src=block507.src;
 document.BackOff.src=block509.src;
 document.Topics.src=block512.src;
 
 document.SponsoredBy.src=block556.src;
 //document.Sponsor.src=block566.src;
 
}else if (num=="599"){
 document.MobWire.src=block501.src;
 document.CarrierServ.src=block503.src;
 document.BBAccess.src=block505.src;
 document.NetInfra.src=block507.src;
 document.BackOff.src=block509.src;
 document.Topics.src=block511.src;
 
 document.SponsoredBy.src=block550.src;
 //document.Sponsor.src=block560.src;
}
}















/*  Pop up window links  */



//print window in pop up
//"Javascript:openPrintable('sigin_01.cfm')"
function openPrintable(URL){
PrintableWin=window.open(URL,"PrintableWin","width=675,height=450,left=50,top=50, toolbars=1, location=1, resize=1")
}


//figure window pop up
//"Javascript:openFigure('sigin_01.cfm')"
function openFigure(URL){
FigureWin=window.open(URL,"FigureWin","width=650, height=500, scrollbars=yes, left=100, x=100, top=100, y=100")
}



//MultiMedia window pop up
//"Javascript:openVideo('sigin_01.cfm')"
function openVideo(URL){
VideoWin=window.open(URL,"FigureWin","width=750, height=500, scrollbars=yes, left=30, x=30, top=30, y=30")
}



//sign in pop up
//"Javascript:openMediakit('sigin_01.cfm')"
function openMediakit(URL){
MediakitWin=window.open(URL,"MediakitWin","width=625, height=600, scrollbars=yes, left=100, x=100, top=100, y=100, toolbars=1, location=1, resize=1")
}

//techtionary in pop up
//"Javascript:openTechtionary('sigin_01.cfm')"
function openTechtionary(URL){
TechtionaryWin=window.open(URL,"TechtionaryWin","width=625, height=600, scrollbars=yes, left=100, x=100, top=100, y=100, toolbars=1, location=1, resize=1")
}











// ----------------------------------------------
// StyleSwitcher functions written by Paul Sowden
// http://www.idontsmoke.co.uk/ss/
// - - - - - - - - - - - - - - - - - - - - - - -
// For the details, visit ALA:
// http://www.alistapart.com/stories/alternate/
//
// nifty StyleSwitcher scripts modified by Aaron Jones 10/10/2002
// ----------------------------------------------

function setActiveStyleSheet(title, reset) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
    }
  }
  if (reset == 1) {
	  createCookie("wstyle", title, 365);
  }
}

function setStyle() {
	var style = readCookie("wstyle");
	if (style != null) {
		setActiveStyleSheet(style, 0);
	}
}






//resize script

function resized(){
  if(pageWidth!=innerWidth || pageHeight!=innerHeight){
    location.reload()
  }
}


if(document.layers){
  pageWidth=innerWidth
  pageHeight=innerHeight
  window.onresize=resized
}





//sign in pop up
//"Javascript:openSignin('sigin_01.cfm')"
function openSignin(URL){
SigninWin=window.open(URL,"SigninWin","width=380,height=420,left=200,top=200")
}








function defocus(x) {

    if (navigator.appName == 'Microsoft Internet Explorer' || document.all)
        x.blur();
}

//<a href="#" onClick="defocus(this)">





// The Central Randomizer 1.3 (C) 1997 by Paul Houle (houle@msc.cornell.edu)
// See:  http://www.msc.cornell.edu/~houle/javascript/randomizer.html

rnd.today=new Date();
rnd.seed=rnd.today.getTime();

function rnd() {
        rnd.seed = (rnd.seed*9301+49297) % 233280;
        return rnd.seed/(233280.0);
};

function rand(number) {
        return Math.ceil(rnd()*number);
};



// end central randomizer. -->