/***********************************************
* DD Tab Menu script- ? Dynamic Drive DHTML code library (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
***********************************************/

//Set tab to intially be selected when page loads:
//[which tab (1=first tab), ID of tab content to display (or "" if no corresponding tab content)]:
var initialtab=[1, ""]

//Turn menu into single level image tabs (completely hides 2nd level)?
var turntosingle=0 //0 for no (default), 1 for yes

//Disable hyperlinks in 1st level tab images?
var disabletablinks=1 //0 for no (default), 1 for yes

////////Stop editting////////////////

var previoustab=""

if (turntosingle==1)
document.write('<style type="text/css">\n#tabcontentcontainer{display: none;}\n</style>')

function expandcontent(cid, aobject){
if (disabletablinks==1)
aobject.onclick=new Function("return false")
if (document.getElementById && turntosingle==0){
highlighttab(aobject)

if (previoustab!="") 
document.getElementById(previoustab).style.display="none"
else {
collectddtabs()
for (i=0; i<tabobjlinks.length; i++) 
document.getElementById("sc" + i).style.display="none"
}


if (cid!=""){
document.getElementById(cid).style.display="block"
previoustab=cid
}
}
}

function highlighttab(aobject){
if (typeof tabobjlinks=="undefined")
collectddtabs()
for (i=0; i<tabobjlinks.length; i++)
tabobjlinks[i].className=""
aobject.className="current"
}

function collectddtabs(){
var tabobj=document.getElementById("ngsNav")
tabobjlinks=tabobj.getElementsByTagName("A")
}