// JavaScript Document
// changeLetter - changes the selection from the Suppliers Index
// Made for Morrisons by Mark Mulrooney/Candi

var oldObj;

function initialiseSuppliersIndex() {	// Make all suppliers disappear
	document.getElementById('suppliersIndexA').style.display="none";
	document.getElementById('suppliersIndexB').style.display="none"; 
//	document.getElementById('suppliersIndexC').style.display="none"; 
//	document.getElementById('suppliersIndexD').style.display="none";
//	document.getElementById('suppliersIndexE').style.display="none";
//	document.getElementById('suppliersIndexF').style.display="none"; 
//	document.getElementById('suppliersIndexG').style.display="none"; 
//	document.getElementById('suppliersIndexH').style.display="none";
//	document.getElementById('suppliersIndexI').style.display="none";
//	document.getElementById('suppliersIndexJ').style.display="none"; 
//	document.getElementById('suppliersIndexK').style.display="none"; 
//	document.getElementById('supplierksIndexL').style.display="none";
//	document.getElementById('suppliersIndexM').style.display="none";
//	document.getElementById('suppliersIndexN').style.display="none"; 
//	document.getElementById('suppliersIndexO').style.display="none"; 
//	document.getElementById('suppliersIndexP').style.display="none";
//	document.getElementById('suppliersIndexQ').style.display="none";
//	document.getElementById('suppliersIndexR').style.display="none"; 
//	document.getElementById('suppliersIndexS').style.display="none"; 
//	document.getElementById('suppliersIndexT').style.display="none";
//	document.getElementById('suppliersIndexU').style.display="none";
//	document.getElementById('suppliersIndexV').style.display="none"; 
//	document.getElementById('suppliersIndexW').style.display="none"; 
//	document.getElementById('suppliersIndexX').style.display="none";
//	document.getElementById('suppliersIndexY').style.display="none";
//	document.getElementById('suppliersIndexZ').style.display="none"; 
}

function changeLetter(letter,objLetterLink){
	
	alert(letter);
	initialiseSuppliersIndex();
	
	letter="suppliersIndex" + letter;
	document.getElementById(letter).style.display="block"; // Make text for relevant letter appear
	
	if (oldObj) {
		oldObj.style.backgroundColor = 'transparent'; // change background colour of previous letter back to white
		oldObj.style.color = '#444444'; // change colour of previous letter back to grey
	}
	
	objLetterLink.style.backgroundColor = '#006553'; // change background colour of chosen letter to green
	objLetterLink.style.color = '#FFF'; // change colour of chosen letter to white
	
	oldObj=objLetterLink;	// make record of chosen letter, so it can be switched off next time
}

function hoverOn(objLetterLink){
	objLetterLink.style.backgroundColor = '#006553'; // change background colour of chosen letter to green
	objLetterLink.style.color = '#FFF'; // change colour of chosen letter to white
}

function hoverOff(objLetterLink){
	objLetterLink.style.backgroundColor = '#FFF'; // change background colour of chosen letter to white
	objLetterLink.style.color = '#444444'; // change colour of chosen letter to grey
}