// javascript functions by D de Alwis

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 fullimage(popurl, ww, hw) {
		var newWin;
		if (ww=="") {ww = 410; }
		if (hw=="") {hw = 690; }
		newWin = window.open(popurl, 'image','width='+ww+', height='+hw+', scrollbars=no, resizable=yes, addressbar=no');
		newWin.focus();				 
} 
	
function emailCheck (emailStr) {

	var emailPat=/^(.+)@(.+)$/
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	var validChars="\[^\\s" + specialChars + "\]"
	var quotedUser="(\"[^\"]*\")"
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	var atom=validChars + '+'
	var word="(" + atom + "|" + quotedUser + ")"
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")

	var matchArray=emailStr.match(emailPat)
	if (matchArray==null) {
		alert("Email address seems incorrect (check @ and .'s)")
	return false
	}
	var user=matchArray[1]
	var domain=matchArray[2]

	// See if "user" is valid 
	if (user.match(userPat)==null) {
	// user is not valid
	    alert("The Email username doesn't seem to be valid.")
	    return false
	}

	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null) {
	    // this is an IP address
	  for (var i=1;i<=4;i++) {
	    if (iparray[i]>255) {
	        alert("Email Destination IP address is invalid!")
		return false
	    }
    	}
	return true
	}

	// Domain is symbolic name
	var domainArray=domain.match(domainPat)
	if (domainArray==null) {
		alert("The Email domain name doesn't seem to be valid.")
		return false
	}

	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length
	if (domArr[domArr.length-1].length<2 || 
	   domArr[domArr.length-1].length>3) {
	   // the address must end in a two letter or three letter word.
	   alert("The Email address must end in a three-letter domain, or two letter country.")
	   return false
	}

	// Make sure there's a host name preceding the domain.
	if (len<2) {
	   var errstr="This Email address is missing a hostname!"
	   alert(errstr)
	   return false
	}

	return true;
}

//-------------------------------- PHOTO DRAWER TOGGLE -----------------------------

function swap(targetId,buttonId){
  
  if (document.getElementById)
        {
        target = document.getElementById(targetId);
        buttonName = document.getElementById(buttonId);
//alert ('T: ' + target.style.display);
            if (target.style.display == "none" || target.style.display == "")
                {
                target.style.display = "";
                } 
            
            else 
                {
                target.style.display = "none";
                }
            /*    
            if (target.style.display == "none")
                {
                //buttonName.src = "./img/nav_open.gif";
                }
            else 
                {
                //buttonName.src = "./img/nav_close.gif";
                }
			*/   
        }
}

function swapPhoto(photoSRC) {
	//document.innerHtml = '<div id=\"overlay\">&nbsp;</div>';
	//initImage();
	
    document.images.imgPhoto.src = photoSRC;
    scrollTo(0,0);
    
}

function setOpacity(obj, opacity) {
  opacity = (opacity == 100)?99.999:opacity;
  
  // IE/Win
  obj.style.filter = "alpha(opacity:"+opacity+")";
  
  // Safari<1.2, Konqueror
  obj.style.KHTMLOpacity = opacity/100;
  
  // Older Mozilla and Firefox
  obj.style.MozOpacity = opacity/100;
  
  // Safari 1.2, newer Firefox and Mozilla, CSS3
  obj.style.opacity = opacity/100;
}

function fadeIn(objId,opacity) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity <= 100) {
      setOpacity(obj, opacity);
      opacity += 10;
      window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 50);
    }
  }
} 
function initImage() {
  imageId = 'thephoto';
  image = document.getElementById(imageId);
  image.style.visibility = 'hidden';
  setOpacity(image, 0);
  image.style.visibility = 'visible';
  fadeIn(imageId,0);
}

//window.onload = function() {initImage()}