// ROLLOVERS

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} }
      }
    }
  }
}

// GENERIC ADD EVENT SCRIPT

function addEvent(obj, evType, fn) {
 if (obj.addEventListener) { obj.addEventListener(evType, fn, false);  return true; }
 else if (obj.attachEvent) { var r = obj.attachEvent("on"+evType, fn); return r;    }
 else                      { return false; }
}

addEvent(window, 'load', rollinit);


// ADD TO FAVOURITES SCRIPT

function AddToFavorites(url,title) {
  /* if (window.opera) { // opera
     var elem = document.createElement('a');
     elem.setAttribute('rel','sidebar');
     elem.setAttribute('href',url);
     elem.setAttribute('title',title);
     alert(elem.href +'\n'+ elem.title +'\n'+ elem.rel)
     elem.click();
   }
   else*/  if(document.all) { // ie
     window.external.AddFavorite(url,title);
   }
   else { alert('Sorry, your browser doesn\'t support this function.\n\nPlease add the bookmark manually through your browser.');  }
}


// SOME VALIDATION STUFF

function validateSubscribe() {
  o = document.getElementById('sname');      if ( !o || o.value == '' ) { alert('Please complete name.');           return false; }
  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('Invalid email address!');  return false; }
}


function validateRecommForm() {
  o = document.getElementById('toname');
  if ( !o || o.value == '' )
    { alert('Please complete recipient\'s name.'); return false; }
  o = document.getElementById('toemail');
  if ( !o || o.value == '' )
    { alert('Please complete recipient\'s email address.'); return false; }
  if ( !(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.((\w{2,3})|(aero|coop|info|museum|name)))+$/.test(o.value)) )
    { alert('Recipient\'s email address is invalid!');  return false; }
  o = document.getElementById('fromname');
  if ( !o || o.value == '' )
    { alert('Please complete your name.'); return false; }
  o = document.getElementById('fromemail');
  if ( !o || o.value == '' )
    { alert('Please complete your email address.');           return false; }
  if ( !(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.((\w{2,3})|(aero|coop|info|museum|name)))+$/.test(o.value)) )
    { alert('Your email address is invalid!');  return false; }
}


// STANDARD MACROMEDIA 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) { //v4.0
  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') { 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 == '');
}