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();

block120= new Image();
block121= new Image();

block101.src="images/HH_Nav_Magazines_off.gif";
block102.src="images/HH_Nav_Magazines_over.gif";

block103.src="images/HH_Nav_TechBooks_off.gif";
block104.src="images/HH_Nav_TechBooks_over.gif";

block105.src="images/HH_Nav_Events_off.gif";
block106.src="images/HH_Nav_Events_over.gif";

block107.src="images/HH_Nav_Newsletters_off.gif";
block108.src="images/HH_Nav_Newsletters_over.gif";

block109.src="images/HH_Nav_ListRent_off.gif";
block110.src="images/HH_Nav_ListRent_over.gif";

block111.src="images/HH_Nav_About_off.gif";
block112.src="images/HH_Nav_About_over.gif";

block113.src="images/HH_Nav_Contact_off.gif";
block114.src="images/HH_Nav_Contact_over.gif";


block120.src="images/HH_Nav_Home_off.gif";
block121.src="images/HH_Nav_Home_over.gif";

function displayNav(num){

if (num=="102"){
document.Magazines.src=block102.src;
document.TechBooks.src=block103.src;
document.Events.src=block105.src;
document.Newsletters.src=block107.src;
document.ListRent.src=block109.src;
document.About.src=block111.src;
document.Contact.src=block113.src;

}else if (num=="104"){
document.Magazines.src=block101.src;
document.TechBooks.src=block104.src;
document.Events.src=block105.src;
document.Newsletters.src=block107.src;
document.ListRent.src=block109.src;
document.About.src=block111.src;
document.Contact.src=block113.src;

}else if (num=="106"){
document.Magazines.src=block101.src;
document.TechBooks.src=block103.src;
document.Events.src=block106.src;
document.Newsletters.src=block107.src;
document.ListRent.src=block109.src;
document.About.src=block111.src;
document.Contact.src=block113.src;

}else if (num=="108"){
document.Magazines.src=block101.src;
document.TechBooks.src=block103.src;
document.Events.src=block105.src;
document.Newsletters.src=block108.src;
document.ListRent.src=block109.src;
document.About.src=block111.src;
document.Contact.src=block113.src;

}else if (num=="110"){
document.Magazines.src=block101.src;
document.TechBooks.src=block103.src;
document.Events.src=block105.src;
document.Newsletters.src=block107.src;
document.ListRent.src=block110.src;
document.About.src=block111.src;
document.Contact.src=block113.src;

}else if (num=="112"){
document.Magazines.src=block101.src;
document.TechBooks.src=block103.src;
document.Events.src=block105.src;
document.Newsletters.src=block107.src;
document.ListRent.src=block109.src;
document.About.src=block112.src;
document.Contact.src=block113.src;


}else if (num=="114"){
document.Magazines.src=block101.src;
document.TechBooks.src=block103.src;
document.Events.src=block105.src;
document.Newsletters.src=block107.src;
document.ListRent.src=block109.src;
document.About.src=block111.src;
document.Contact.src=block114.src;

}else if (num=="121"){
document.Magazines.src=block101.src;
document.TechBooks.src=block103.src;
document.Events.src=block105.src;
document.Newsletters.src=block107.src;
document.ListRent.src=block109.src;
document.About.src=block111.src;
document.Contact.src=block113.src;
document.Home.src=block121.src;


}else if (num=="100"){
document.Magazines.src=block101.src;
document.TechBooks.src=block103.src;
document.Events.src=block105.src;
document.Newsletters.src=block107.src;
document.ListRent.src=block109.src;
document.About.src=block111.src;
document.Contact.src=block113.src;
document.Home.src=block120.src;



}else if (num=="1000"){
document.Magazines.src=block101.src;
document.TechBooks.src=block103.src;
document.Events.src=block105.src;
document.Newsletters.src=block107.src;
document.ListRent.src=block109.src;
document.About.src=block111.src;
document.Contact.src=block113.src;

}
}








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"');
}
}


/*
if (navigator.appName == "Netscape"){
var layerRef="document.layers";
var styleSwitch="";
}else{
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"');
}
*/

//hides all
function hideAll(num){
if (num=="99"){
hideLayer('menunewssection');
hideLayer('menumissions');
hideLayer('menutopics');
hideLayer('menuoperations');
hideLayer('menucloser');
hideLayer('menucloser2');

}else if (num=="999"){
hideLayer('menunewssection');
hideLayer('menumissions');
hideLayer('menutopics');
hideLayer('menuoperations');
}
}


function showSome(num){
if (num=="110"){
hideAll('99');
showLayer('menunewssection');
showLayer('menucloser');
showLayer('menucloser2');

}else if (num=="120"){
hideAll('99');
showLayer('menumissions');
showLayer('menucloser');
showLayer('menucloser2');

}else if (num=="130"){
hideAll('99');
showLayer('menutopics');
showLayer('menucloser');
showLayer('menucloser2');

}else if (num=="140"){
hideAll('99');
showLayer('menuoperations');
showLayer('menucloser');
showLayer('menucloser2');

}else if (num=="150"){
hideAll('99');
showLayer('menucloser');
showLayer('menucloser2');

}else if (num=="160"){
hideAll('99');
showLayer('menucloser');
showLayer('menucloser2');

}
}

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





//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)">