// generic macromedia functions for rollovers, etc

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) { //v4.0
  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 && document.getElementById) x=document.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_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') {
        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 (val<min || max<val) 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 == '');
}

// simple rollover function
// syntax for use: <a href="blah.html"><img src="img/butt_1a.gif" alt="" class="roll:img/butt_1b.gif"></a>
// add onload="rollinit()" to body tag of page


var imgz = new Array

function rollinit() {
  if (document.getElementsByTagName) { var x = document.getElementsByTagName('img'); }
  else if (document.all.tags) { var x = document.all.tags('img'); }
  else { return false; }
  for (var i=0; i<x.length; i++) {
    if (x[i].className.substring(0,5) == 'roll:') {
      rollsrc = x[i].className.substring(5,x[i].className.length);
      if ( rollsrc > '' )  {
        imgz[i]=new Image; imgz[i].src = rollsrc;
        x[i].onmouseover = function () { origSrc=this.src; this.src=this.className.substring(5,this.className.length); }
        x[i].onmouseout  = function () { if(typeof(origSrc)!='undefined') {this.src=origSrc} }
      }
    }
  }
}


// standard popup function
function popup(url, nameW, w, h, x, y, scroll) {
nameW = window.open(url, nameW, 'height='+h+',width='+w+',scrollbars='+scroll+',resizable=0,menubar=0,toolbar=0,status=0,location=0,directories=0,left=' + x + ',top=' + y + '');
}


// functions/arrays for image gallery on prop details page

var imagenames=new Array()    // array for names of images to be preloaded
var bigimages=new Array()     // array for images to be preloaded

function switchpic(which)     // for switching main property pic
   {document.mainpic.src=which}

function loadimages() {
  for (i=1; i<imagenames.length; i++) {
    bigimages[i]= new Image();
    bigimages[i].src = imagenames[i];
  }
}


// email address validation

function validateEmail() {
  o = document.getElementById('email');
  if ( !o || o.value == '' )    { alert('Please complete email address.');  return false; }
  if ( !(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.((\w{2,3})|(aero|coop|info|museum|name)))+$/.test(o.value)) )
    { alert('Email address is invalid!');  return false; }
}