/* ------------- drop down menu script ------------ modified 20 May 2010 --------- */ // copyright Graf Web Design - Australia 2009 All rights reserved // // global variables var g_currentMOhandler=null; // stores button mouseover handler var g_currentMenu=null; // stores menu that is currently open var g_currentButton=null; // stores button that has just activated the menu var g_bkgrndElem=null; // stores ref to background object var g_oldBgColor=null; // stores ref to button backgrnd colour on mouseover var g_oldFgColor=null; // stores ref to button foreground colour on mouseover var g_boxList=new Array() // stores display [block] or not[none] info for each box g_boxList["box1"]="none"; g_boxList["box2"]="block"; g_boxList["box3"]="none"; g_boxList["box4"]="none"; g_boxList["box5"]="none"; g_boxList["box6"]="none"; g_boxList["box7"]="none"; // ------------------------------------------------- // initialise button handlers on loading the page [look in the tag below for the call to this function]. function init() { var i, elem; // apply event handler to each button for(i=1; i<8; i++) // <<<<<<<<<<<<< change this number to increase number of menus [buttons+1]. { elem=document.getElementById("ox"+i); elem.onmouseover=show; // passes event to function show() when written like this elem.style.backgroundColor="#767676"; // sets background colour elem.style.color="#000000"; // sets foreground colour } } // -------- Colour settings: ------------------------ // topNav bar bkgrd colour set above. topNav hover colour and toggle set below. // Drop-down boxes background and table td cells set in ddMenu.css // Drop down box table toggle set in nav.js // ---------------------------------------------- // When you hover over the nav button the mouseover handler on the button calls the // function "show()". The event is passed to the function, which allows you to // determine the object that called the event - which button in this case. // The button id's are named "ox1" and "ox2". By adding a "b"+"ox1" you get "box1" // which is the id of the menu. This allows you to make the correct menu visible. // You can add any number of menus by adding another

below // and increasing the number in the init() function. // function show(evt) { // -- check for outstanding menu being displayed -- if(g_currentMenu){ swch()}; // if it's there, clear it and cancel all storage by calling function swch() // // --- equalise events across IE and NS. evt is passed to this function by the mouseover event --- evt=(evt)?evt : ((window.event)?event : null) g_currentButton=(evt.target)? evt.target : evt.srcElement; // this is the button being hovered over // // ------- correction for bug in Netscape 7 ---- text node is selected. Swap between node and parent node, depending on browser g_currentButton=(g_currentButton.parentNode.nodeName=="TD")?g_currentButton.parentNode : g_currentButton; // --- toggle nav button colour background on hover ---- g_oldBgColor=g_currentButton.style.backgroundColor; // store old background colour g_oldFgColor=g_currentButton.style.color; // store old foreground colour // // set nav bar static and hover colours here - first colour is light colour var newBgColor, newFgColor; // ----- check for RGB colours - FireFox, Netscape system --- // Netscape and Firefox use rgb(255, 255,255) system one has spaces, the other doesn't if(g_oldBgColor.indexOf("(")>-1) // Netscape + FireFox { var fill=(g_oldBgColor.indexOf(" ")== -1)?"" :" "; // look for spaces // use function D(hex) to convert hex to decimal newBgColor=(g_oldBgColor=="rgb("+D('76')+","+fill+D('76')+","+fill+D('76')+")")?"rgb("+D('C0')+","+fill+D('C0')+","+fill+D('C0')+")" : "rgb("+D('76')+","+fill+D('76')+","+fill+D('76')+")"; newFgColor=(g_oldFgColor=="rgb("+D('0')+","+fill+D('0')+","+fill+D('0')+")")?"rgb("+D('FF')+","+fill+D('FF')+","+fill+D('FF')+")" : "rgb("+D('0')+","+fill+D('0')+","+fill+D('0')+")"; } else // IE + Opera { newBgColor=(g_oldBgColor.toUpperCase()=="#767676")?"#C0C0C0":"#767676"; // use upper case and 6 chars newFgColor=(g_oldFgColor.toUpperCase()=="#000000")?"#FFFFFF":"#000000"; // use upper case and 6 chars } // // set button to new background & foreground colour g_currentButton.style.backgroundColor=newBgColor; g_currentButton.style.color=newFgColor; // // get menu object and store as global current menu g_currentMenu=document.getElementById("b"+g_currentButton.id); // get reference to menu object eg: "b"+"ox1" // check if you want to display then display menu if allowed var showIt=g_boxList[g_currentMenu.id]; // g_currentMenu.style.display=showIt; // store current handler for later in global variable g_currentMOhandler=g_currentButton.onmouseover; // set the button MO handler to do nothing g_currentButton.onmouseover=null; // // set global background handler to active g_bkgrndElem=document.getElementById("bkgrnd"); // get reference to background object g_bkgrndElem.onmouseover=swch; // apply event handler g_bkgrndElem.style.zIndex="6"; // lift above other images on page // return } // // -------------------------------------------- // convert hex to decimal pairs function D(hexNo) { var hexPair=parseInt(hexNo,16); return hexPair; } // ----------------------------------------------- // // this function hides outstanding menus and clears all storage info // function swch() { // hide current menu g_currentMenu.style.display="none"; g_currentMenu=null; // // cancel background handler g_bkgrndElem.onmouseover=null; // set to do nothing g_bkgrndElem.style.zIndex="1"; // drop below other images on page // // toggle button colour g_currentButton.style.backgroundColor=g_oldBgColor; g_oldBgColour=null; // // toggle button foreground colour g_currentButton.style.color=g_oldFgColor; g_oldBgColour=null; // // reset old button handler and cancel entries g_currentButton.onmouseover=g_currentMOhandler; g_currentButton=null; g_currentMOhandler=null; // // reset thumbnail z-index to 10 if it exists var elem2=document.getElementById("picBox") if(elem2){elem2.style.zIndex="10"}; // reset selectList on recipe page display to block if it exists var elem2=document.getElementById("selectList") if(elem2){elem2.style.display="block"}; } // ----------------------------------------------