// These funtions handle the hiding and showing of layers on a page

function swapCellBg(idCell, classCell) { 
	document.getElementById(idCell).className = classCell;
}

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_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')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}
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();
}

//functions to handle sections
function LH_setSection(navArray,sectionName) {  //sets value for sections to out unless locked
 var curStyle,obj,i;
 //loop for each element of the array
 for(i=1;i<navArray.length;i++){
  // if (navArray[0][0]==3) alert("I'm here\n"+sectionName+"\n"+navArray[i][0]);
  //if there is no layer name then disable the nav element
  if (navArray[i][1]=="") {
   curStyle=navArray[0][1];
  //if current section is not selected hide layer and set style
  } else if (navArray[i][0]!=sectionName) {
   curStyle=navArray[0][2];
   MM_showHideLayers(navArray[i][1],'','hide');	
  //if current section is selected show layer and set style
  } else {
   curStyle=navArray[0][3];
   MM_showHideLayers(navArray[i][1],'','show');	   
 }
  obj=MM_findObj(navArray[i][0]);
  if (obj) obj.className=curStyle;
  //alert("I'm here\n"+i+" of "+navArray.length);
 }
}

function LH_handleMouse(navArray,sectionName){
 LH_setSection(navArray,sectionName);
}