// JavaScript Document

/**********************************
  Macromedia Javascript Functions
**********************************/

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];}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function MM_changeProp(objName,x,theProp,theValue) { //v6.0
  var obj = MM_findObj(objName);
  if (obj && (theProp.indexOf("style.")==-1 || obj.style)){
    if (theValue == true || theValue == false)
      eval("obj."+theProp+"="+theValue);
    else eval("obj."+theProp+"='"+theValue+"'");
  }
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function MM_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
  } if (errors) alert('The following error(s) occurred:\n'+errors);
  document.MM_returnValue = (errors == '');
}


/**********************************
  Changes the selected value of a
  drop-down menu 
**********************************/

function changeMenu(id, index) {
 var _menu = document.getElementById(id);
 _menu.selectedIndex = index;
}


/**********************************
  Email Obfuscator
   - prevents email addresses from 
     being read by spammers
**********************************/

function address(name, dom, tld)
{
  var addr = name + '@' + dom + '.' + tld;
  document.write(addr);
}

function SetHREF(obj, box, dom, tld, sbj)
{
  var addr = 'mailto:' + box + '@' + dom + '.' + tld;
  addr = (sbj != null) ? addr + '?subject=' + sbj : addr;
  obj.href = addr;
}


/**********************************
  Turn off and on content
**********************************/

function toggleDisplay(id) {
  var obj = document.getElementById(id);
  if (obj.style.display == 'none') {
    obj.style.display = "";
  } else {
    obj.style.display = "none";
  }  
}

function toggleDisplayGroup(num, prefix, num_items) {
  // hides page content where the id= prefix+1,2,3... num_items
  // shows page content where the id=prefix+num
  var id = prefix+num;
  var element, current_id;
  for (var i=1; i<=num_items; i++) {
    current_id = prefix+i;
    element = document.getElementById(current_id);
    if (current_id == id) {
      toggleDisplay(id);
    } else {
      element.style.display = "none";
    }
  }
}


/**********************************
  Enlarge photo pop up
   - prevents window focus from 
     hiding behind the main window
**********************************/

var photoWin;
function openBrWindow(theURL,winName,features) {
  photoWin=window.open(theURL,winName,features);
  if (window.focus) {photoWin.focus()}
}


/**********************************
  Control the "Modify Location, Style" button bar rollovers
**********************************/

var modify_state  = 0;
var modify_off    = '/images/buttons/modify_location_off.gif';
var modify_on     = '/images/buttons/modify_location_on.gif';
var modify_off_up = '/images/buttons/modify_location_off_up.gif';
var modify_on_up  = '/images/buttons/modify_location_on_up.gif';
function swapModifyOn(id) {
  var img = document.getElementById(id);
  if (modify_state == 0) {
    img.src = modify_on;
  } else if (modify_state == 1) {
    img.src = modify_on_up;
  }
}
function swapModifyOff(id) {
  var img = document.getElementById(id);
  if (modify_state == 0) {
    img.src = modify_off;
  } else if (modify_state == 1) {
    img.src = modify_off_up;
  }
}
function clickModify(id) {
  var img = document.getElementById(id);
  modify_state = (modify_state == 0) ? 1 : 0;
}

function toggleSortOrder(id) {
  document.form_search.page_number.value = 1;
  if(id.value.toLowerCase() == 'asc') {
    id.value = 'desc';
  }
  else if(id.value.toLowerCase() == 'desc') {
    id.value = 'asc';
  }
  else if(id.value.toLowerCase() == '') {
    id.value = 'desc';
  }
  return true;       
}