//1
function imageItem(image_location) {
this.image_item = new Image();
this.image_item.src = image_location;
}

//2
function get_ImageItemLocation(imageObj) {
return(imageObj.image_item.src)
}

//3
function generate(x, y) {
var range = y - x + 1;
return Math.floor(Math.random() * range) + x;
}

//4
function getNextImage() {
if (random_display) {
image_index = generate(0, number_of_image-1);
}
else {
image_index = (image_index+1) % number_of_image;
}
var new_image = get_ImageItemLocation(image_list[image_index]);
return(new_image);
}

//5
function rotateImage(place) {
var new_image = getNextImage();
document[place].src = new_image;
var recur_call = "rotateImage('"+place+"')";
setTimeout(recur_call, interval);
}

//6
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;
}

//7
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];}}
}

//8
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;
}

//9
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];}
}

//10
function isValidEmail(strEmail) {
  strfield1 = document.forms[0].email.value 
  validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
  strEmail = document.forms[0].email.value;
  if (strfield1 == "" || strfield1 == null || strfield1.charAt(0) == ' ') {
    return true;
  }
  else {
  if (strEmail.search(validRegExp) == -1) {
    alert('Please enter a valid e-mail address...');
      return false;
    }
      return true; 
  }
}

//11
function checkEmail(theForm) {
	if (theForm.email.value != theForm.email_confirm.value)
	{
		alert('Please double-check your e-mail address.');
		return false;
	} else {
		return true;
	}
}

//free JS
var interval = 5; // delay between rotating images (in seconds)
var random_display = 0; // 0 = no, 1 = yes
interval *= 1000;

var image_index = 0;
image_list = new Array();
image_list[image_index++] = new imageItem("images/home01.jpg");
image_list[image_index++] = new imageItem("images/home02.jpg");
image_list[image_index++] = new imageItem("images/home03.jpg");
image_list[image_index++] = new imageItem("images/home05.jpg");
image_list[image_index++] = new imageItem("images/home06.jpg");
image_list[image_index++] = new imageItem("images/home08.jpg");
image_list[image_index++] = new imageItem("images/home09.jpg");
image_list[image_index++] = new imageItem("images/home10.jpg");
var number_of_image = image_list.length;

//load on startup
//window.onload=rotateImage('rImage');
//window.onload=MM_preloadImages('images/btn_home_2.gif','images/btn_philosophy_2.gif','images/btn_sustainable_2.gif','images/btn_gallery_2.gif','images/btn_about_2.gif','images/btn_clients_2.gif','images/btn_contact_2.gif');