function alphanumOnly(evt) {
    evt = (evt) ? evt : event;
    var charCode = (evt.charCode) ? evt.charCode : ((evt.keyCode) ? evt.keyCode : 
        ((evt.which) ? evt.which : 0));
    if (charCode > 31 &&
		(charCode < 48 || charCode > 57) && 
		(charCode < 65 || charCode > 90) && 
        (charCode < 97 || charCode > 122)) {
//        alert("Enter alphanumeric characters only.");
        return false;
    }
    return true;
}

function alternateRowColors(colour1, colour2) {
	var className = 'alternaterowcolors';
	var rowcolor1 = '#' + colour1;
	var rowcolor2 = '#' + colour2;
	var rows, arow;
	var atable;
	var tables = document.getElementsByTagName("table");
	var rowCount = 0;
	for(var i=0;i<tables.length;i++) {
		if(tables.item(i).className == className) {
			atable = tables.item(i);
			rows = atable.getElementsByTagName("tr");
			for(var j=0;j<rows.length;j++) {
				arow = rows.item(j);
				if(arow.nodeName == "TR") {
					if(rowCount % 2) {
						arow.style.backgroundColor = rowcolor1;
					} else {
						// default case
						arow.style.backgroundColor = rowcolor2;
					}
					rowCount++;
				}
			}
			rowCount = 0;
		}
	}
}

function biblicalRefFormat(str) {
	var formattedString = str;
	formattedString = formattedString.replace(":", ".");
	formattedString = formattedString.replace("–", "-");
	formattedString = formattedString.replace("—", "-");
	formattedString = formattedString.replace(String.fromCharCode(150), "-");
	formattedString = formattedString.replace(String.fromCharCode(151), "-");
	formattedString = formattedString.replace(". ", ".");
	formattedString = formattedString.replace(" .", ".");
	formattedString = formattedString.replace("- ", "-");
	formattedString = formattedString.replace(" -", "-");
	return formattedString;
}

function checkPostcode(p) {
	var myPostcode = MM_findObj("Postcode");
	var correctPostcode = isValidPostcode(p);
	if (correctPostcode) {
		myPostcode.value = correctPostcode;
	}
	else {
		alert('Warning! Postcode ' + p + ' is invalid');
	}
}

function CurrencyFormatted(amount)
{
	var i = parseFloat(amount);
	if(isNaN(i)) { i = 0.00; }
	var minus = '';
	if(i < 0) { minus = '-'; }
	i = Math.abs(i);
	i = parseInt((i + .005) * 100);
	i = i / 100;
	var s = new String(i);
	if(s.indexOf('.') < 0) { s += '.00'; }
	if(s.indexOf('.') == (s.length - 2)) { s += '0'; }
	s = minus + s;
	return s;
}

function encode(text) {
		mytext = text;
		strchars='‚ƒ„…†‡ˆ‰Š‹Œ‘’“”•–—˜™š›œ�žŸ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ0';
		for (j=0;j<strchars.length-1;j++)
			{
			mychar = strchars.charAt(j);
			mycode = strchars.charCodeAt(j);
			myencoding = '&#' + mycode + ';'
			mytext = myreplace(mytext,mychar,myencoding);
			}
			mytext = myreplace(mytext,String.fromCharCode(13),' ');
			mytext = myreplace(mytext,String.fromCharCode(10),' ');
			mytext = myreplace(mytext,'\'','&#39;');
//			mytext = myreplace(mytext,'\"','&#34;');
		return mytext;
}

function ISBNcharsOnly(evt) {
    evt = (evt) ? evt : event;
    var charCode = (evt.charCode) ? evt.charCode : ((evt.keyCode) ? evt.keyCode : 
        ((evt.which) ? evt.which : 0));
    if (charCode > 31 &&
		(charCode < 48 || charCode > 57) && 
        (charCode < 88 || charCode > 88)) {
//        alert("Enter numeric characters or 'X' only.");
        return false;
    }
    return true;
}

function IsNumeric(sText)

{
   var ValidChars = "0123456789";
   var IsNumber=true;
   var Char;

 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
   
}

function isValidPostcode (toCheck) {

  // Permitted letters depend upon their position in the postcode.
  var alpha1 = "[abcdefghijklmnoprstuwyz]";                       // Character 1
  var alpha2 = "[abcdefghklmnopqrstuvwxy]";                       // Character 2
  var alpha3 = "[abcdefghjkstuw]";                                // Character 3
  var alpha4 = "[abehmnprvwxy]";                                  // Character 4
  var alpha5 = "[abdefghjlnpqrstuwxyz]";                          // Character 5
  
  // Array holds the regular expressions for the valid postcodes
  var pcexp = new Array ();

  // Expression for postcodes: AN NAA, ANN NAA, AAN NAA, and AANN NAA
  pcexp.push (new RegExp ("^(" + alpha1 + "{1}" + alpha2 + "?[0-9]{1,2})(\\s*)([0-9]{1}" + alpha5 + "{2})$","i"));
  
  // Expression for postcodes: ANA NAA
  pcexp.push (new RegExp ("^(" + alpha1 + "{1}[0-9]{1}" + alpha3 + "{1})(\\s*)([0-9]{1}" + alpha5 + "{2})$","i"));

  // Expression for postcodes: AANA  NAA
  pcexp.push (new RegExp ("^(" + alpha1 + "{1}" + alpha2 + "?[0-9]{1}" + alpha4 +"{1})(\\s*)([0-9]{1}" + alpha5 + "{2})$","i"));
  
  // Exception for the special postcode GIR 0AA
  pcexp.push (/^(GIR)(\s*)(0AA)$/i);
  
  // Standard BFPO numbers
  pcexp.push (/^(bfpo)(\s*)([0-9]{1,4})$/i);
  
  // c/o BFPO numbers
  pcexp.push (/^(bfpo)(\s*)(c\/o\s*[0-9]{1,3})$/i);
  
  // Overseas Territories
  pcexp.push (/^([A-Z]{4})(\s*)(1ZZ)$/i);

  // Load up the string to check
  var postCode = toCheck;

  // Assume we're not going to find a valid postcode
  var valid = false;
  
  // Check the string against the types of post codes
  for ( var i=0; i<pcexp.length; i++) {
    if (pcexp[i].test(postCode)) {
    
      // The post code is valid - split the post code into component parts
      pcexp[i].exec(postCode);
      
      // Copy it back into the original string, converting it to uppercase and
      // inserting a space between the inward and outward codes
      postCode = RegExp.$1.toUpperCase() + " " + RegExp.$3.toUpperCase();
      
      // If it is a BFPO c/o type postcode, tidy up the "c/o" part
      postCode = postCode.replace (/C\/O\s*/,"c/o ");
      
      // Load new postcode back into the form element
      valid = true;
      
      // Remember that we have found that the code is valid and break from loop
      break;
    }
  }
  
  // Return with either the reformatted valid postcode or the original invalid 
  // postcode
  if (valid) {return postCode;} else return false;
}

function MM_callJS(jsStr) { //v2.0
  return eval(jsStr)
}

function MM_changeProp(objName,x,theProp,theValue) { //v6.0
  var obj = MM_findObj(objName);
  if (obj && (theProp.indexOf("style.")==-1 || obj.style)){
    if (theValue == true || theValue == false)
      eval("obj."+theProp+"="+theValue);
    else eval("obj."+theProp+"='"+theValue+"'");
  }
}

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_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

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_setTextOfTextfield(objName,x,newText) { //v3.0
  var obj = MM_findObj(objName); if (obj) obj.value = newText;
}

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_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 myreplace(string,text,by) {
// Replaces text with by in string
    var strLength = string.length, txtLength = text.length;
    if ((strLength == 0) || (txtLength == 0)) return string;

    var i = string.indexOf(text);
    if ((!i) && (text != string.substring(0,txtLength))) return string;
    if (i == -1) return string;

    var newstr = string.substring(0,i) + by;

    if (i+txtLength < strLength)
        newstr += myreplace(string.substring(i+txtLength,strLength),text,by);

    return newstr;
}

function numcharsOnly(evt) {
    evt = (evt) ? evt : event;
    var charCode = (evt.charCode) ? evt.charCode : ((evt.keyCode) ? evt.keyCode : 
        ((evt.which) ? evt.which : 0));
    if (charCode > 31 &&
		(charCode < 48 || charCode > 57) && 
        (charCode < 46 || charCode > 46)) {
//        alert("Enter numeric characters or 'X' only.");
        return false;
    }
    return true;
}

function PCase(STRING){
var strReturn_Value = "";
var iTemp = STRING.length;
if(iTemp==0){
	return"";
}
var UcaseNext = false;
strReturn_Value += STRING.charAt(0).toUpperCase();
for(var iCounter=1;iCounter < iTemp;iCounter++){
	if(UcaseNext == true){
		strReturn_Value += STRING.charAt(iCounter).toUpperCase();
	}
	else{
		strReturn_Value += STRING.charAt(iCounter).toLowerCase();
	}
	var iChar = STRING.charCodeAt(iCounter);
	if(iChar == 32 || iChar == 45 || iChar == 46 || iChar == 10 || iChar == 13){
		UcaseNext = true;
	}
	else{
		UcaseNext = false
	}
	if(iChar == 99 || iChar == 67){
		if(STRING.charCodeAt(iCounter-1)==77 || STRING.charCodeAt(iCounter-1)==109){
			UcaseNext = true;
		}
	}
} //End For

return strReturn_Value;
} //End Function

function PCG_goToURL() { //v3.0
  var i, args=PCG_goToURL.arguments; document.MM_returnValue = false;
  window.name = "opener";
  for (i=0; i<(args.length-1); i+=3) eval(args[i]+".open('"+args[i+1]+"', '"+args[i+2]+"')");
}

function refresh()
{
    window.location.reload( false );
}

function refreshOpener()
{
    if (window.opener && !window.opener.closed)
		window.opener.location.reload( false );
}

function stopRKey(evt) {
	var evt  = (evt) ? evt : ((event) ? event : null);
	var node = (evt.target) ? evt.target : ((evt.srcElement) ? evt.srcElement : null);
	if ((evt.keyCode == 13) && (node.type=="text")) { return false; }
}
document.onkeypress = stopRKey;

function Trim(sString)
{
	while (sString.substring(0,1) == ' ')
	{
		sString = sString.substring(1, sString.length);
	}
	while (sString.substring(sString.length-1, sString.length) == ' ')
	{
		sString = sString.substring(0,sString.length-1);
	}
	return sString;
}

function TrimNums(sString)
{
	while ((sString.substring(0,1) == ' ') || IsNumeric(sString.substring(0,1)))
	{
		sString = sString.substring(1, sString.length);
	}
	while ((sString.substring(sString.length-1, sString.length) == ' ') || IsNumeric(sString.substring(sString.length-1, sString.length)))
	{
		sString = sString.substring(0,sString.length-1);
	}
	return sString;
}

function UCase(STRING){
var strReturn_Value = "";
var iTemp = STRING.length;
if(iTemp==0){
	return"";
}
strReturn_Value = STRING.toUpperCase();
return strReturn_Value;
}

function YY_checkform() { //v4.71
//copyright (c)1998,2002 Yaromat.com
  var a=YY_checkform.arguments,oo=true,v='',s='',err=false,r,o,at,o1,t,i,j,ma,rx,cd,cm,cy,dte,at;
  for (i=1; i<a.length;i=i+4){
    if (a[i+1].charAt(0)=='#'){r=true; a[i+1]=a[i+1].substring(1);}else{r=false}
    o=MM_findObj(a[i].replace(/\[\d+\]/ig,""));
    o1=MM_findObj(a[i+1].replace(/\[\d+\]/ig,""));
    v=o.value;t=a[i+2];
    if (o.type=='text'||o.type=='password'||o.type=='hidden'){
      if (r&&v.length==0){err=true}
      if (v.length>0)
      if (t==1){ //fromto
        ma=a[i+1].split('_');if(isNaN(v)||v<ma[0]/1||v > ma[1]/1){err=true}
      } else if (t==2){
        rx=new RegExp("^[\\w\.=-]+@[\\w\\.-]+\\.[a-zA-Z]{2,4}$");if(!rx.test(v))err=true;
      } else if (t==3){ // date
        ma=a[i+1].split("#");at=v.match(ma[0]);
        if(at){
          cd=(at[ma[1]])?at[ma[1]]:1;cm=at[ma[2]]-1;cy=at[ma[3]];
          dte=new Date(cy,cm,cd);
          if(dte.getFullYear()!=cy||dte.getDate()!=cd||dte.getMonth()!=cm){err=true};
        }else{err=true}
      } else if (t==4){ // time
        ma=a[i+1].split("#");at=v.match(ma[0]);if(!at){err=true}
      } else if (t==5){ // check this 2
            if(o1.length)o1=o1[a[i+1].replace(/(.*\[)|(\].*)/ig,"")];
            if(!o1.checked){err=true}
      } else if (t==6){ // the same
            if(v!=MM_findObj(a[i+1]).value){err=true}
      }
    } else
    if (!o.type&&o.length>0&&o[0].type=='radio'){
          at = a[i].match(/(.*)\[(\d+)\].*/i);
          o2=(o.length>1)?o[at[2]]:o;
      if (t==1&&o2&&o2.checked&&o1&&o1.value.length/1==0){err=true}
      if (t==2){
        oo=false;
        for(j=0;j<o.length;j++){oo=oo||o[j].checked}
        if(!oo){s+='* '+a[i+3]+'\n'}
      }
    } else if (o.type=='checkbox'){
      if((t==1&&o.checked==false)||(t==2&&o.checked&&o1&&o1.value.length/1==0)){err=true}
    } else if (o.type=='select-one'||o.type=='select-multiple'){
      if(t==1&&o.selectedIndex/1==0){err=true}
    }else if (o.type=='textarea'){
      if(v.length<a[i+1]){err=true}
    }
    if (err){s+='* '+a[i+3]+'\n'; err=false}
  }
  if (s!=''){alert('The required information is incomplete or contains errors:\t\t\t\t\t\n\n'+s)}
  document.MM_returnValue = (s=='');
}