// Southwest Texas Telephone - JavaScript Functions

var time = 3000;
var numofitems = 6;

// loads page interactivity instructions
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}
				
// attaches a status line message for mouseover and mouseout
function attachStatusLineBehavior(lnk, msg) {
	lnk.onmouseover = function() {
		status = msg;
		return true;
	}
	lnk.onmouseout = function() {
		status = "";
		return true;
	}
}

function closesubnav(event){
  if ((event.clientY <48)||(event.clientY > 107)){
    for (var i=1; i<= numofitems; i++){
      var shutdiv =eval('menuitem'+i+'.thediv');
      shutdiv.style.visibility='hidden';
    }
  }
}

function displayMap(){
	window.open("../images/HOME/serviceAreaMapLarge.jpg","","resizable,scrollbars,,width=950,height=507");
}

//menu methods
function ehandler(event,theobj){
  for (var i=1; i<= theobj.numberofmenuitems; i++){
    var shutdiv =eval( "menuitem"+i+".thediv");
    shutdiv.style.visibility="hidden";
  }
  theobj.thediv.style.visibility="visible";
}

//menu constructor
function menu(allitems,thisitem,startstate){ 
  callname= "gl"+thisitem;
  divname="subglobal"+thisitem;  
  this.numberofmenuitems = allitems;
  this.caller = document.getElementById(callname);
  this.thediv = document.getElementById(divname);
  this.thediv.style.visibility = startstate;
}

// prepares status line message based on statusline attribute or link text
function prepareStatusLineMessage() {
	if (!document.getElementsByTagName) return false;
	var links = document.getElementsByTagName("a");
	for (var i=0; i<links.length; i++) {
		var mover = links[i].getAttribute("onmouseover");
		var mout = links[i].getAttribute("onmouseout");
		if (mover || mout)
			;
		else {
		var text = links[i].getAttribute("statusline");
		if (!text)
			text = links[i].lastChild.nodeValue;
		attachStatusLineBehavior(links[i], text);
		}
	}
}

function MM_displayStatusMsg(msgStr) { //v1.0
  status=msgStr;
  document.MM_returnValue = true;
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

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_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

// Attach interactive events
addLoadEvent(prepareStatusLineMessage);