function img_act(imgName){
	imgOn = eval(imgName + "on.src");
    document [imgName].src = imgOn;
}
   
function img_inact(imgName){
	imgOff = eval(imgName + "off.src");
	document [imgName].src = imgOff;
}

if (document.images) {
	var detailson = new Image; detailson.src ="/img/bttn_my_details_on.gif"; 
	var shopping_basketon = new Image; shopping_basketon.src ="/img/bttn_shopping_basket_on.gif"; 
	var supply_accounton = new Image; supply_accounton.src ="/img/btn_supplies_account_on.gif"; 
	var learningon = new Image; learningon.src ="/img/bttn_learning_account_on.gif"; 
	var contacton = new Image; contacton.src ="/img/bttn_contact_proipn_on.gif"; 
	var abouton = new Image; abouton.src ="/img/bttn_about_proipn_on.gif"; 
	var helpon = new Image; helpon.src ="/img/bttn_help_on.gif"; 
	var logouton = new Image; logouton.src ="/img/bttn_logout_on.gif"; 
	var continueon = new Image; continueon.src ="/img/buttons/continue_on.gif"; 
	var addaddresson = new Image; addaddresson.src ="/img/buttons/btn_addaddress_1.gif"; 
	var previouson = new Image; previouson.src = "/img/buttons/btn_previous_1.gif";
	var nexton = new Image; nexton.src = "/img/buttons/btn_next_1.gif";
	
	var detailsoff = new Image; detailsoff.src ="/img/bttn_my_details_off.gif"; 
	var shopping_basketoff = new Image; shopping_basketoff.src ="/img/bttn_shopping_basket_off.gif"; 
	var supply_accountoff = new Image; supply_accountoff.src ="/img/btn_supplies_account_off.gif"; 
	var learningoff = new Image; learningoff.src ="/img/bttn_learning_account_off.gif"; 
	var contactoff = new Image; contactoff.src ="/img/bttn_contact_proipn_off.gif"; 
	var aboutoff = new Image; aboutoff.src ="/img/bttn_about_proipn_off.gif"; 
	var helpoff = new Image; helpoff.src ="/img/bttn_help_off.gif"; 
	var logoutoff = new Image; logoutoff.src ="/img/bttn_logout_off.gif"; 
	var continueoff = new Image; continueoff.src ="/img/buttons/continue_off.gif"; 
	var addaddressoff = new Image; addaddressoff.src ="/img/buttons/btn_addaddress.gif"; 
	var previousoff = new Image; previousoff.src = "/img/buttons/btn_previous.gif";
	var nextoff = new Image; nextoff.src = "/img/buttons/btn_next.gif";
}

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) { //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_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];}
}