<!--
//************ Start Default Commands ************
var graphic = "";   
var isNS4 = 0; var isIE4 = 0; var isNS6 = 0; var isNew = 0;
var docObj, styleObj, currObj, cstyleObj;

var bVer = (parseInt(navigator.appVersion));
var bName = navigator.appName;
var brow = ((navigator.appName) + (parseInt(navigator.appVersion)));

if (bName == "Netscape" && bVer >= 3) version = "js";
else if (bName == "Opera" && bVer >= 3) version = "js";
else if (bName == "Microsoft Internet Explorer" && bVer >= 4) version = "js";
else if (bName == "Netscape" && bVer == 2) version = "no";
else if (bName == "Microsoft Internet Explorer" && bVer >= 2) version = "no";

if (parseInt(navigator.appVersion >= 5)){isNew = 1}
else if (brow == "Netscape4") {isNS4 = 1;}
else if (brow == "Netscape5") {isNS6 = 1;}
else if (brow == "Opera9") {isNS6 = 1;}
else if (brow == "Microsoft Internet Explorer4") {isIE4 = 1;}
				
if (isNS4||isNS6||isIE4||isNew) {
  if(isNS4){ docObj = "document."; }
  else if(isNS6){ docObj = "document.getElementById('"; }
  else { docObj = "document.all."; }

  if(isNS4){ styleObj = ""; }
  else if(isNS6){ styleObj = "').style"; }
  else { styleObj = ".style"; }
  
  if(isNS4){ cstyleObj = ""; }
  else if(isNS6){ cstyleObj = "').currentStyle"; }
  else { cstyleObj = ".currentStyle"; }
}

function getQuery(val){
  var querystring = location.search.substring(1,location.search.length);
  var o = "";
  var tSec = querystring.indexOf(val+"=");
  var tStr = querystring.substring( (tSec+(val.length+1)),querystring.length);
  
  if(tSec != -1){
    if(tStr.indexOf('&') != -1){
      o = tStr.substring(0,tStr.indexOf('&'));
    } else {
      o = tStr;
    }
  }
  return o;
}

function replaceSubstring(s,f,w){
  rtn = "";
  flg = 0;
  
  for(i = 0; i < s.length; i++){
    if(s.substr(i,f.length) == f){
      rtn += w;
      i += (f.length - 1);
    } else {
      rtn += s.charAt(i);
    }
  }
  return (rtn);
}

function urlencode(str) {
  str = escape(str);
  str = str.replace('+', '%2B');
  str = str.replace('%20', '+');
  str = str.replace('*', '%2A');
  str = str.replace('/', '%2F');
  str = str.replace('@', '%40');
  return str;
}

function testAlphaPassword(f,d){
  if(d == ""){ d = 0; }
  var doc = document.forms[d];
  var ele = doc.elements[f];
  var str = false;

  if(ele.value == ""){
    alert("Please enter a password");
  } else {
    if(/[^a-zA-z0-9]/i.test(ele.value)){
      alert("Sorry, your password may only contain letters and numbers");
    } else {
      str = true;
    }
  }

  return str;
}

function getCookie(Name){ 
  var search = Name + "=" 
  if(document.cookie.length > 0){
    offset = document.cookie.indexOf(search);
    if(offset != -1){
      offset += search.length;
      end = document.cookie.indexOf(";", offset);
      if(end == -1){ end = document.cookie.length; }
      return unescape(document.cookie.substring(offset, end)) ;
    }
  } 
} 

function setCookie(name, value) {
  var today = new Date(); 
  expires = new Date(); 
  expires.setTime(today.getTime() + 1000*60*60*24*1);
  document.cookie = name + "=" + value + ";path=/;expires=" + expires.toGMTString();
}

function openPopup(URL,id,width,height){
  window.open(URL, id, "toolbar=no,location=no,width="+width+",height="+height+",status=yes,scrollbars=yes,scrolling=yes,menubar=no,resizable=yes");
}

function openPopupLocked(URL,id,width,height){
  window.open(URL, id, "toolbar=no,location=no,width="+width+",height="+height+",status=yes,scrollbars=yes,scrolling=yes,menubar=no,resizable=no");
}

function goPage(u){
  location.href = u;
}

function displayChange(l,v) {
  if (isNS4||isNS6||isIE4||isNew) { eval(docObj + l + styleObj + '.display = "' + v + '"') }
}

function clearText(f,t,d){
  if(d == ""){ d = 0; }
  var doc = document.forms[d];
  var ele = doc.elements[f].value;

  if(ele == t){
    doc.elements[f].value = "";
  }
}

function addText(f,t,d){
  if(d == ""){ d = 0; }
  var doc = document.forms[d];
  var ele = doc.elements[f].value;

  if(ele == ""){
    doc.elements[f].value = t;
  }
}

//************ End Default Commands ************

//********* Start Validation Commands **********
function setFocus(f,d){
  document.forms[d].elements[f].focus();
}

function testEmail(f,d){
  var a = document.forms[d].elements[f].value;
  var at = a.indexOf("@")
  var name = a.substring(0, at)
  var isp = a.substring(at + 1, a.length)
  var dot = a.lastIndexOf(".")

  if (at == -1 || at == 0 || name == "" || isp == "" || dot == -1 || dot == (a.length - 1)) {
    alert('You must enter a valid email address');
    setFocus(f,d);
  } else {
    return true;
  }
}

function testText(f,t,s,d){
  if(d == ""){ d = 0; }
  var doc = document.forms[d];

  if(doc.elements[f].value == "" || doc.elements[f].value == s){
    alert('You must enter ' + t);
    setFocus(f,d);
  } else {
    return true;
  }
}

function testSelect(f,t,d){
  var a = document.forms[d].elements[f];
  if( (a.selectedIndex >= 0) && (a.options[a.selectedIndex].value != "") ){
    return true;
  } else {
    alert('You must select a ' + t);
    setFocus(f,d);
  }
}

function testRadio(f,t,d){
  var a = document.forms[d].elements[f];
  var str = "";

  for(i = 0; i < a.length; i++){
    if(a[i].checked == true){
      str = "yes";
      break;
    } else {
      str = "no";
    }
  }

  if(str == "yes"){
    return true;
  } else {
    alert('You must select ' + t);
  }
}

function testRadioValue(f,t,d){
  var a = document.forms[d].elements[f];
  var str = "";

  for(i = 0; i < a.length; i++){
    if(a[i].checked == true){
      if(a[i].value == t){
        str = "yes";
      } else {
        str = "no";
      }
      break;
    } else {
      str = "no";
    }
  }

  if(str == "yes"){
    return true;
  } else {
    return false;
  }
}

function testCheck(f,t,d){
  var a = document.forms[d].elements[f];
  var str = "";

  if(a.checked == true){
    return true;
  } else {
    alert('You must select ' + t);
  }
}

function getRadio(f,d){
  var a = document.forms[d].elements[f];
  var str = "";

  for(i = 0; i < a.length; i++){
    if(a[i].checked == true){
      str = a[i].value;
      break;
    } else {
      str = "";
    }
  }

  return str;
}

function validate_donate(d){
  if(d == ""){ d = 0; }
  var doc = document.forms[d];

  if( testText('data_title','your title','',d) && testText('data_firstname','your first name','',d) && testText('data_lastname','your last name','',d) && testEmail('data_emailaddress',d) && testText('data_card_name','the name on your credit/debit card','',d) && testText('data_card_number','your credit/debit card number','',d) && testText('data_expiry_date','your credit/debit card expiry date','mm/yy',d) && testText('data_postcode','your billing post code','',d) ){
    if(getRadio('data_member',d) == ""){
      alert('Please select your Art Fund member Status');
    } else {
      doc.action.value = "confirmdonate";
      doc.submit();
    }
  }
}

function validate_donate_confirm(d){
  if(d == ""){ d = 0; }
  var doc = document.forms[d];
  doc.action.value = "submitdonate";
  doc.submit();
}

//********* End Validation Commands **********

function _toggle(t) {
 	if(t.value == "0") {
 		 displayChange('mail_options','block');
 		 displayChange('af_member_field','none');
	 } else {
		 	displayChange('mail_options','none');
			 displayChange('af_member_field','block');
	 }
}


function is_numeric(t){
  if(/[^0-9]/i.test(t.value)){ alert("Sorry, you may only enter numbers"); }
}

function getIndexPos(s,n,a){
  return a;
}

function add_count(v,i,c,n){
  var doc = document.forms[0];
  var ary = doc.avail_ary.value.split(',');
  var val = (c+v);

  for(j=0; j < ary.length; j++){
    if(ary[j] == val){
      val += 1;
    }
  }

  if(ary.length > 1){
    if(i==0){ var num = 1; } else { var num = (i+1); }
    var str1 = new String(ary.slice(0,num));
    var str2 = new String(ary.slice(num,ary.length));

    var new_ary = str1 + ("," + val + ",") + str2;
  } else {
    var new_ary = ary + "," + val;
  }

  if(new_ary.charAt(new_ary.length-1) == ","){
    new_ary = new_ary.substring(0,new_ary.length-1);
  }

  if(val > 0){
    doc.action.value = "add";
    doc.count.value = val;
    doc.selnum.value = (i+1);
    doc.avail_ary.value = new String(new_ary);
    doc.submit();
  }
}

function remove_count(v,c,n){
  var doc = document.forms[0];
  var ary = doc.avail_ary.value.split(',');

  if((c-1) > 0){
    ary.splice(v,1);
    doc.action.value = "remove";
    doc.count.value = (c-1);
    doc.selnum.value = (ary.length-1);
    doc.avail_ary.value = new String(ary);
    doc.submit();
  }
}

function move_mask(mask,coords,txt,alt){
  var ary = coords.split(',');

  document.getElementById(txt).innerHTML = alt;
  if(isNS4||isNS6||isIE4||isNew){
    eval(docObj + mask + styleObj + '.marginTop = "' + ((ary[1]*1)+2) + 'px"');
    eval(docObj + mask + styleObj + '.marginLeft = "' + ((ary[0]*1)+2) + 'px"');

    eval(docObj + txt + styleObj + '.marginTop = "' + ((ary[1]*1)-13) + 'px"');
    eval(docObj + txt + styleObj + '.marginLeft = "' + ((ary[0]*1)+9) + 'px"');
  }
  displayChange(mask,'block');
  displayChange(txt,'block');
}

function reset_mask(mask,txt){
  displayChange(mask,'none');
  if(isNS4||isNS6||isIE4||isNew){
    eval(docObj + mask + styleObj + '.marginTop = "1px"');
    eval(docObj + mask + styleObj + '.marginRight = "0px"');
    eval(docObj + mask + styleObj + '.marginBottom = "0px"');
    eval(docObj + mask + styleObj + '.marginLeft = "1px"');
  }

  if(txt != ""){
    displayChange(txt,'none');
    document.getElementById(txt).innerHTML = "";
  }
}

function timeNav(){
  setTimeout("reset_mask('section_mask','section_text');",1000);  
}

function atxt(lbl,x,y){
  var nme = "seclabel";
  var mask = document.getElementById(nme);

  if(lbl == ""){
    mask.innerHTML = "";
    displayChange(nme,'none');
  } else {
    if(isNS4||isNS6||isIE4||isNew){
      eval(docObj + nme + styleObj + '.marginTop = "' + ((y*1)-18) + 'px"');
      eval(docObj + nme + styleObj + '.marginLeft = "' + ((x*1)+12) + 'px"');
    }

    mask.innerHTML = lbl;
    displayChange(nme,'block');
  }
}

function add(x,y,n,im){
  var doc = document.forms['buypixels'];
  var path = doc.elements['path'].value;
  var ele = document.getElementById('S' + x + '' + y);
  var txt = document.getElementById('sqamt');
  var err = document.getElementById('buyerror');
  var amt = 5;
  var c = doc.elements['dig_count'].value*1;
  var z = doc.elements['dig_section'].value;
  var pixels = z + '_' + x + '_' + y + ';';

  if(ele){
    if(ele.className == "sm"){
      ele.className = "sm_sel";
      ele.style.backgroundImage="url('" + path + "graphics/assets/section" + n + "/" + im + "')";
      doc.elements['dig_pixels'].value += pixels;
      c += 1;
    } else {
      ele.className = "sm";
      ele.style.backgroundImage="url('" + path + "graphics/spm.gif')";
      doc.elements['dig_pixels'].value = replaceSubstring(doc.elements['dig_pixels'].value,pixels,'');
      c -= 1;
    }
  }

  if(err){ err.innerHTML = ""; }
  if(txt){
    if(c > 0){
      doc.elements['dig_count'].value = c;
      txt.innerHTML = c + " = Ł" + (c*amt);
    } else {
      doc.elements['dig_count'].value = 0;
      txt.innerHTML = "0 = Ł0";
    }
  }
}

function submit_brushstrokes(){
  var doc = document.forms['buypixels'];
  if( (doc.elements['dig_count'].value*1) > 0 ){
    doc.action.value = "submitpixels";
    doc.submit();
  } else {
    alert('You have not selected the dig sites you wish to purchase. Please go back and choose the area you would like to view close up.');
    return false;
  }
}

function set_redirect(u){
  var doc = document.forms['donate'];
  doc.redirect.value = u;
}

function clear_basket(id){
  var doc = document.forms['donate'];

  if( (doc.action.value == "confirmdonate") || (doc.action.value == "confirmdonate") ){
  } else {
    doc.action.value = "clearorder";
    doc.submit();
  }
}


//-->