//-----------
// BEGIN SCRIPTS FOR NAV MENUS
//-----------

// MENU GLOBALS

//var navcontname='navcontainer';
var navcontname;
var menumainwidth=100;
var navmode=0;
// 0 is right 1 is left
var fldr=0;
var fldrorg=0;
//containing menu ids
var menuids=new Array();

//item that opens this menu
var menuparitem=new Array();
var menuparindex=new Array();
var itemchildren=new Array();
var timerID;
var menuactv=0;


//item ids
var itemids=new Array();
var itemparids=new Array();
var itemchild=new Array();
var linkarr=new Array();

var xSize=0;
var ySize=0;


//index to menuids and menuparitem arrays
var menuids_ct=1;
//index to itemids and itemmenu arrays
var itemids_ct=0;
var step_ct=0;

var nodeposition=new Array();
var nodelength=new Array();

var absdepth=0;
var deptharr=new Array();

function parseMenus() {

	if (document.getElementById('nav-left')) {
		navmode=0;
		fldr=0;
	} else if (document.getElementById('nav-right')) {
		navmode=1;
		fldr=1;
	} else if (document.getElementById('nav-top')) {
		navmode=2;
		fldr=0;
	}
	fldrorg=fldr;

navcontname=document.getElementById('navcontainer');
menuids[0]=navcontname;
menuparitem[0]=navcontname;
deptharr[0]=navcontname;
nodeposition[0]=0;
nodelength[0]=deptharr[0].childNodes.length;



do {

 if (deptharr[absdepth].childNodes[nodeposition[absdepth]].tagName=="DIV") {
      if (deptharr[absdepth].childNodes[nodeposition[absdepth]].className.indexOf("submenu")!=-1) {
        menuids[menuids_ct]=deptharr[absdepth].childNodes[nodeposition[absdepth]];
        deptharr[absdepth+1]=menuids[menuids_ct];
        menuparitem[menuids_ct]=itemids[itemids_ct-1];
        menuparindex[menuids_ct]=itemids_ct;
        itemchildren[menuids_ct]=menuids[menuids_ct];
        itemchild[itemids_ct-1]=menuids[menuids_ct];
	
		//linkarr[itemids_ct].className="tertiary linkHasSub"; // use to apply arrows to subs using class "linkHasSub"
		
        rolladd="rollMenu(" + menuids_ct +")";
		rolladdout="rollMenu(0)";
		
        eval('menuparitem[menuids_ct].onmouseover=function(){' + rolladd + '}');
		eval('menuparitem[menuids_ct].onmouseout=function(){' + rolladdout + '}');
        nodelength[absdepth+1]=deptharr[absdepth].childNodes[nodeposition[absdepth]].childNodes.length-1;
        absdepth++;
        nodeposition[absdepth]=-1;
        menuids_ct++;
} else {

     itemids[itemids_ct]=deptharr[absdepth].childNodes[nodeposition[absdepth]];
     itemparids[itemids_ct]=menuids[menuids_ct-1];
     nodelength[absdepth+1]=deptharr[absdepth].childNodes[nodeposition[absdepth]].childNodes.length-1;
     absdepth++;
     deptharr[absdepth]=itemids[itemids_ct];
     nodeposition[absdepth]=-1;
  	 itemids_ct++;
	 }

 } else if (deptharr[absdepth].childNodes[nodeposition[absdepth]].tagName=="A") {
	 deptharr[absdepth].childNodes[nodeposition[absdepth]].id="sublink" + itemids_ct;
     linkarr[itemids_ct]=deptharr[absdepth].childNodes[nodeposition[absdepth]];
	}

    nodeposition[absdepth]++;
    if (nodeposition[absdepth]>nodelength[absdepth]) {
    do {
        absdepth--;
        nodeposition[absdepth]++;
    } while (nodeposition[absdepth]>nodelength[absdepth]);
    }

} while (nodeposition[0]<nodelength[0]);


}


function positionMenus() {

//menumainwidth=document.getElementById('navcontainer').clientWidth;
menumainheight=document.getElementById('navcontainer').clientHeight;

// Nav-Left
if (navmode==0) {
	
	for (i=1; i<menuids.length; i++) {

		ofst=0;
		ofsl=0;
		ofsw=0;
		
		menuids[i].style.position="absolute";
	    menuids[i].style.zIndex="10000" + i;
		ofsw=menuids[i].clientWidth;
		menuids[i].style.width=ofsw;
		
		ofst=linkarr[menuparindex[i]].offsetTop;
		ofsl=menuparitem[i].offsetLeft + menuparitem[i].clientWidth;
		
		edgeAdjuster(ofsl,ofst,ofsw,i);
	}
	
// Nav-Right	
} else if (navmode==1) {
	
	for (i=1; i<menuids.length; i++) {
		ofst=0;
		ofsl=0;
		ofsw=0;
		
		menuids[i].style.position="absolute";
		menuids[i].style.zIndex="10000" + i;
		ofsw=menuids[i].clientWidth;
		menuids[i].style.width=ofsw;
		
		ofst=linkarr[menuparindex[i]].offsetTop;
		ofsl=menuparitem[i].offsetLeft - menuids[i].clientWidth;

		edgeAdjuster(ofsl,ofst,ofsw,i);
	}

// Nav-Top
} else if (navmode==2) {
 	
 	for (i=1; i<menuids.length; i++) {
	     ofst=0;
 		 ofsl=0;
 		 ofsw=0;
 		 
    	 menuids[i].style.zIndex="10000" + i;
 		 ofsw=menuparitem[i].clientWidth;
 		 
 		 if (menuparitem[i].offsetParent.id) {
 		 //ofst=menumainheight + 2;
 		 ofst=menuparitem[i].clientHeight;
	     } else {
	     ofst=linkarr[menuparindex[i]].offsetTop;
         ofsl=menuparitem[i].offsetLeft + menuparitem[i].clientWidth;
	     }
	     
	     
	     edgeAdjuster(ofsl,ofst,ofsw,i);
	}
 }

}

function edgeAdjuster(xfs,yfs,wdt,i) {
  
  getPageSizes();
  
        xpg=0;
		ypg=0;
		myobj=menuids[i];
		do {
		xtest = myobj.offsetLeft;
		ytest = myobj.offsetTop;

		if (myobj.offsetLeft>0) xpg += myobj.offsetLeft;
		if (myobj.offsetTop>0) ypg += myobj.offsetTop;
		myobj= myobj.offsetParent;

		} while ((myobj.tagName!="BODY")&&(myobj.tagName!="HTML"));
  
if((navmode==0)||(navmode==2)) {
  if (fldr==0) {
  if ((xpg + xfs + wdt)>xSize) {
  
  if(xpg>wdt) xfs-=wdt*2;
 
  fldr=1;
  }
  } else {
  if ((xpg -xfs)<0) {
  
  fldr=0;
  } else {
  
  xfs-=wdt*2;
  
  }

  }
}

if (navmode==1) {

	 if (fldr==0) {
  if ((xpg + wdt*2)>=xSize) {
   
  fldr=1;
  } else {
  
  xfs+=wdt*2;
  
  }
  
  
  } else {
  if ((xpg-wdt)<=-1) {

  xfs+=wdt*2;
  fldr=0;
  
  }
  
  }

}

  if(navmode==2) {
  
  if(menuids[i].offsetParent.offsetParent.id!="navcontainer") {
  menuids[i].style.left=xfs + "px";
  }
  
  } else {
  
  menuids[i].style.left=xfs + "px";
  }	
  menuids[i].style.top=yfs + "px";
  menuids[i].style.visibility="hidden";
  
}

//--end  function menuSetPositions() --

function getPageSizes() {
	if(typeof(window.innerWidth)=='number') {
    //IE
    xSize=window.innerWidth;
    ySize=window.innerHeight;
  } else if(document.documentElement &&
      (document.documentElement.clientWidth||document.documentElement.clientHeight)) {
    //IE 6 xhtml
    xSize=document.documentElement.clientWidth;
    ySize=document.documentElement.clientHeight;
  } else if(document.body&&(document.body.clientWidth||document.body.clientHeight)) {
    //IE 4 5 or 6 standard
    xSize=document.body.clientWidth;
    ySize=document.body.clientHeight;
  }
}


function processMenus() {
	parseMenus();
	positionMenus();
}

function resetMenus() {
	
	for (i=1; i<menuids.length; i++) {
	
  		menuids[i].style.left= "0px";
 	
	}
	fldr=fldrorg;
	positionMenus();

}

function rollMenu(ref)
{
olx=xSize;
oly=ySize;

getPageSizes();

if ((olx!=xSize)||(oly!=ySize)) resetMenus();

  if(ref>0) {
	clearTimeout(timerID);
	turnOff(ref);
    menuactv=1;
    itemchildren[ref].style.visibility="visible";
    menuparitem[ref].style.zIndex=10000-ref;
    itemchildren[ref].style.zIndex=10000+ref;
  }
  else
  {
    menuactv=0;
    clearTimeout(timerID);
    timerID = setTimeout('turnOff()', 300);
  }
}

function turnOff(ref)
{
 if (menuactv==0) {
   for (i=0; i<itemchildren.length; i++) {
        if ((itemchildren[i]) && (i!=ref)) itemchildren[i].style.visibility="hidden";
   }
  }

}

//-----------
// END SCRIPTS FOR NAV MENUS
//-----------



//var colheightofs = 31;
var colheightofs = 0;
var pngXOffset=0;
var pngYOffset=0;
function sizeColumns() {

if (window.pngHeight) {
	pngHeight();
}

if (!document.getElementById('column1') ){
	return;
}

coldvht1=document.getElementById('column1').offsetHeight;
coldvht2=document.getElementById('column2').offsetHeight;
coldvht3=document.getElementById('column3').offsetHeight;

if (coldvht1>coldvht2) coldvht2=coldvht1;
else if (coldvht2>=coldvht1) coldvht1=coldvht2;
if (coldvht3>=coldvht1) 
{
  coldvht1=coldvht3;
  coldvht2=coldvht3;
}
else 
{
  coldvht3=coldvht1;
}

coldvht3=coldvht1;
coldvht2=coldvht1;
document.getElementById('colbody1').style.height = (coldvht1 - colheightofs) + 'px';
document.getElementById('colbody2').style.height = (coldvht2 - colheightofs) + 'px';
document.getElementById('colbody3').style.height = (coldvht3 - colheightofs) + 'px';
}