<!-- Begin field validation

function validate(field) {

var valid = "1234567890abcdefghijklmnopqrst uvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
var ok = "yes";
var temp;
for (var i=0; i<field.value.length; i++) {
temp = "" + field.value.substring(i, i+1);
if (valid.indexOf(temp) == "-1") ok = "no";
}
if (ok == "no") {
alert("Please only enter characters in the Envirocentre search function");
window.document.search.searchstring.value = '';
}
if(window.document.search.searchstring.value == ' '){
alert("Please only enter characters in the Envirocentre search function");
return false;
}
if(ok =="yes"){
search.submit();
}
 
}
//  End field validation -->

<!--
w = parseInt(window.screen.width) / 2 - 150;     // this number is half window width
x = parseInt(window.screen.height) / 2 - 100;    // this number is half window height

function disclaimerWin(){
CW=window.open('disclaimer.htm','NewWin','toolbar=no,menubar=no,location=no,resizable=no,status=no,width=300,height=200,scrollbars=no')
CW.moveTo(w,x);
}
y = parseInt(window.screen.width) / 2 - 380;
z = parseInt(window.screen.height) / 2 - 200;

function disclaimerecWin(){
CW=window.open('disclaimer_ec.htm','NewWin','toolbar=no,menubar=no,location=no,resizable=no,status=no,width=320,height=260,scrollbars=no')
CW.moveTo(t,p);
}
y = parseInt(window.screen.width) / 2 - 380;
z = parseInt(window.screen.height) / 2 - 200;

function disclaimerwrWin(){
CW=window.open('disclaimer_wr.htm','NewWin','toolbar=no,menubar=no,location=no,resizable=no,status=no,width=320,height=260,scrollbars=no')
CW.moveTo(w,x);
}
y = parseInt(window.screen.width) / 2 - 380;
z = parseInt(window.screen.height) / 2 - 200;

function sitemapWin(){
CW=window.open('sitemap.asp','NewWin','toolbar=no,menubar=no,location=no,resizable=no,status=no,width=825,height=400,scrollbars=yes')
CW.moveTo(y,z);
}
<!--
function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);
// -->

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_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_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_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_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 == '');
}
//-->

w = parseInt(window.screen.width) / 2 - 215;     // this number is half window width
x = parseInt(window.screen.height) / 2 - 125;    // this number is half window height

function termscondtions(){
CW=window.open('terms/terms_condtions.htm','NewWin','toolbar=no,menubar=no,location=no,resizable=no,status=no,width=430,height=250,scrollbars=no')
CW.moveTo(w,x);
}

function termscondtions2(){
CW=window.open('terms/terms_condtions2.htm','NewWin','toolbar=no,menubar=no,location=no,resizable=no,status=no,width=430,height=250,scrollbars=no')
CW.moveTo(w,x);
}
function termscondtions_two(){
CW=window.open('terms/terms_condtions2.htm','NewWin','toolbar=no,menubar=no,location=no,resizable=no,status=no,width=430,height=250,scrollbars=no')
CW.moveTo(w,x);
}

function termscondtions_three(){
CW=window.open('terms/terms_condtions3.htm','NewWin','toolbar=no,menubar=no,location=no,resizable=no,status=no,width=430,height=250,scrollbars=no')
CW.moveTo(w,x);
}

function termscondtions_four(){
CW=window.open('terms/terms_condtions4.htm','NewWin','toolbar=no,menubar=no,location=no,resizable=no,status=no,width=430,height=250,scrollbars=no')
CW.moveTo(w,x);
}

function termscondtions_five(){
CW=window.open('terms/terms_condtions5.htm','NewWin','toolbar=no,menubar=no,location=no,resizable=no,status=no,width=430,height=250,scrollbars=no')
CW.moveTo(w,x);
}

function termscondtions_six(){
CW=window.open('terms/terms_condtions6.htm','NewWin','toolbar=no,menubar=no,location=no,resizable=no,status=no,width=430,height=250,scrollbars=no')
CW.moveTo(w,x);
}

function resize(){
	var imgWidth = Math.round(document.images.imgProduct.width +30);
	var imgHeight = Math.round(document.images.imgProduct.height +50);
	var x = parseInt(window.screen.width)/2 - (imgWidth/2);
	var y = parseInt(window.screen.height)/2 - (imgHeight/2);
	
	window.resizeTo(imgWidth,imgHeight);
	window.moveTo(x,y);
	window.focus();
}

function init(){
		//var x = ParseInt(contentholder.width);
		//var y = ParseInt(contentholder.height);
		//window.resizeTo(x,y)
	
	}
	
function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   alert("Invalid E-mail Address")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Please enter a valid email address")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Please enter a valid email address")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Please enter a valid email address")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Please enter a valid email address")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid Address")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Invalid E-mail Address")
		    return false
		 }

 		 return true					
	}

function ValidateForm(){
	var email=document.form1.email
	
	if ((email.value==null)||(email.value=="")){
		alert("Please Enter your Email Address")
		email.focus()
		return false
	}
	if (echeck(email.value)==false){
		email.value=""
		email.focus()
		return false
	}
	return true
 }	
 
 
 function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}