<!--javascript functions to go in here-->
<!--
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) { //v3.0
  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); 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 MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

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 recommendpopup(url)    {
var wndPopup = null;
var d = new Date();
var anyvalue = d.getHours() + "_" + d.getMinutes() + "_" + d.getSeconds();

wndPopup = window.open("","RecommendPopup","resizable=no,toolbar=no,scrollbars=yes,width=450,height=500");
wndPopup.name = "RecommendPopup";
}

function newsletterpopup(url)    {
var wndPopup = null;
var d = new Date();
var anyvalue = d.getHours() + "_" + d.getMinutes() + "_" + d.getSeconds();

wndPopup = window.open("","ExampleNewsletter","resizable=no,toolbar=no,scrollbars=yes,width=635,height=500,left=200,top=50");
wndPopup.name = "ExampleNewsletter";
}

function voucherpopup(url)    {
var wndPopup = null;
var d = new Date();
var anyvalue = d.getHours() + "_" + d.getMinutes() + "_" + d.getSeconds();

wndPopup = window.open("","VoucherPopup","resizable=no,toolbar=no,scrollbars=yes,width=450,height=250");
wndPopup.name = "VoucherPopup";
}

function releasepopup(url)    {
var wndPopup = null;
var d = new Date();
var anyvalue = d.getHours() + "_" + d.getMinutes() + "_" + d.getSeconds();

wndPopup = window.open("","ReleasePopup","resizable=no,toolbar=no,scrollbars=yes,width=450,height=575");
wndPopup.name = "ReleasePopup";
}

function sitenotice(url)    {
var wndPopup = null;
var d = new Date();
var anyvalue = d.getHours() + "_" + d.getMinutes() + "_" + d.getSeconds();

wndPopup = window.open(url,"SiteNoticePopup","resizable=no,toolbar=no,scrollbars=yes,width=450,height=450");
wndPopup.name = "SiteNoticePopup";
}

function popUpPrintPage(URL) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=1,resizable=0,width=620,height=500,left = 212,top = 134');");
}

function generalpopup(url,windowname,width,height)    {
var wndPopup = null;
var d = new Date();
var anyvalue = d.getHours() + "_" + d.getMinutes() + "_" + d.getSeconds();

wndPopup = window.open(url,windowname,"resizable=no,toolbar=no,scrollbars=yes,width=" + width + ",height=" + height + "");
wndPopup.name = windowname;
}

var oldemailvalue = "";

function newsletteremailFocus(obj){
  oldemailvalue = obj.value;
  obj.value='';
}

function newsletteremailBlur(obj){
  if (obj.value == "")
  {
    obj.value = oldemailvalue;
  }
  else
  {
    oldemailvalue = obj.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=='');
}

function oneoffsubscribe(){
    // alter the action and submit the form
    document.form1.action = 'signup.asp?action=subscribe';
    document.form1.method = 'POST';
    document.form1.submit();
} 

function subscribe(){
    // alter the action and submit the form
    document.form1.action = 'signup.asp?action=subscribe';
    document.form1.method = 'POST';
    if (!document.form1.furtherinfo.checked) {
        document.form1.submit();
    	}
    else {
        if (confirm("Thank you for signing-up to receive a Pearson Books newsletter.\n\nYou've stated that you do not wish to receive additional\ninformation on Pearson Education products. Without your\npermission we can-not legally send you our latest promotions\nand special offers! This includes our registration offer.\n\nTo sign-up for these offers click 'Cancel' and uncheck the box.\nIf you do not wish to receive this type of promotion simply click 'OK'.")) {
	document.form1.submit();}
	}
} 

function unsubscribe(){
    // alter the action and submit the form
    document.form1.action = 'signup.asp?action=unsubscribe';
    document.form1.method = 'POST';
	document.form1.submit();
}

function unsealerDownload(content) {
downloadWin = window.open(content, "sealedWin","scrollbars,resizable,width=450,height=380")
}

function acrobatDownload(content) {
downloadWin = window.open(content, "adobeWin","scrollbars,resizable,width=700,height=380")
}

function popUpCurrencyConverter(URL) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=400,height=225,left = 312,top = 284');");
}

function printpage() {
window.print();
}

/* --------------------------------------------
  switchTabs: used to switch between hidden items
-------------------------------------------- */
function switchTabs(newTab,oldTab) {
	if (document.getElementById)
	{
		document.getElementById(newTab).style.display = "inline";
		document.getElementById(oldTab).style.display = "none";
		return false;
	}
	else if (document.all)
	{
		document.all[oldTab].style.display = "none";
		document.all[newTab].style.display = "inline";
		return false;
	}
	else {
		return true;
	}
}

function changeStyle(item,newStyle){
	if (document.getElementById)
	{
		document.getElementById(item).className = newStyle;
		return false;
	}
	else if (document.all)
	{
		document.all[item].className = newStyle;
		return false;
	}
	else {
		return true;
	}
}

/* --------------------------------------------
  Quick Search display functions start
-------------------------------------------- */
function inputonblur(item){
if (navigator.appName=='Microsoft Internet Explorer'||navigator.appName=='Netscape')
	{
	hide('search-options');
	}
}

function hide(item){
	if (document.getElementById)
	{
		document.getElementById(item).style.display = "none";
		return false;
	}
	else if (document.all)
	{
		document.all[item].style.display = "none";
		return false;
	}
	else {
		return true;
	}
}

function show(item){
	if (document.getElementById)
	{
		document.getElementById(item).style.display = "inline";
		return false;
	}
	else if (document.all)
	{
		document.all[item].style.display = "inline";
		return false;
	}
	else {
		return true;
	}
}

function clearDefaultValueInputField(field,defaultvalue)
{
	if (typeof(field)=='object'&&field!='')
	{
		if(field.value==defaultvalue)
		{
			field.value='';
			return false;
		}
	}
	else if (document.getElementById)
	{
		if(document.getElementById(field).value==defaultvalue)
		{
			document.getElementById(field).value='';
			return false;
		}
	}
	else if (document.all)
	{
		if(document.all[field].value==defaultvalue)
		{
			document.all[field].value='';
			return false;
		}
	}
	else {
		return true;
	}
}

function populateDefaultValueInputField(field,defaultvalue)
{
		if(field.value=='')
		{
			field.value=defaultvalue;
		}
}

/* --------------------------------------------
  Quick Search display functions end  
-------------------------------------------- */

//-->