// 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 mail2(box, dom, tld, display) {
  var ref = box + "@" + dom + "." + tld;
  if(display.length == 0) display = ref;
  document.write("<a" + " href" + "=mail" + "to:" + ref + ">" + display + "</a>");
}


/**********************************
  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";
    }
  }
}

/**********************************
  Find the x y coords of an element
   - http://www.quirksmode.org/js/findpos.html
**********************************/

function findPosX(obj) {
  var curleft = 0;
  if (obj.offsetParent) {
    while (obj.offsetParent) {
      curleft += obj.offsetLeft
      obj = obj.offsetParent;
    }
  }
  else if (obj.x)
    curleft += obj.x;
  return curleft;
}

function findPosY(obj) {
  var curtop = 0;
  if (obj.offsetParent) {
    while (obj.offsetParent) {
      curtop += obj.offsetTop
      obj = obj.offsetParent;
    }
  }
  else if (obj.y)
    curtop += obj.y;
  return curtop;
}


var timer = 0;

function showNav(id, parent_id) {
  var obj = document.getElementById(id);
  var parent_obj = document.getElementById(parent_id);
  var my_x = findPosX(parent_obj);
  var my_y = findPosY(parent_obj);
  clearTimeout(timer);
  my_y += 39; // height of the nav image for services
  obj.style.top = my_y + 'px';
  obj.style.left = my_x + 'px';
  obj.style.visibility = 'visible';
}

function hideNav(id) {
  timer = setTimeout('actuallyHideNav(\'services_dropdown\')', 100);
}

function actuallyHideNav(id) {
  var my_obj = document.getElementById(id);
  my_obj.style.visibility = 'hidden';
}

/**********************************
  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()}
}