/* Original */
var mmOpenContainer = null;
var mmOpenMenus = null;
var mmHideMenuTimer = null;

function MM_menuStartTimeout(hideTimeout) {
	mmHideMenuTimer = setTimeout("MM_menuHideMenus()", hideTimeout);	
}

function MM_menuHideMenus() {
	MM_menuResetTimeout();
	if(mmOpenContainer) {
		var c = document.getElementById(mmOpenContainer);
		c.style.visibility = "inherit";
		mmOpenContainer = null;
	}
	if( mmOpenMenus ) {
		for(var i in mmOpenMenus) {
			var m = document.getElementById(mmOpenMenus[i]);
			m.style.visibility = "hidden";			
		}
		mmOpenMenus = null;
	}
}

function MM_menuHideSubmenus(menuName) {
	if( mmOpenMenus ) {
		var h = false;
		var c = 0;
		for(var i in mmOpenMenus) {
			if( h ) {
				var m = document.getElementById(mmOpenMenus[i]);
				m.style.visibility = "hidden";
			} else if( mmOpenMenus[i] == menuName ) {
				h = true;
			} else {
				c++;
			}
		}
		mmOpenMenus.length = c+1;
	}
}

function MM_menuOverMenuItem(menuName, subMenuSuffix) {
	MM_menuResetTimeout();
	MM_menuHideSubmenus(menuName);
	if( subMenuSuffix ) {
		var subMenuName = "" + menuName + "_" + subMenuSuffix;
		MM_menuShowSubMenu(subMenuName);
	}
}

function MM_menuShowSubMenu(subMenuName) {
	MM_menuResetTimeout();
	var e = document.getElementById(subMenuName);
	e.style.visibility = "inherit";
	if( !mmOpenMenus ) {
		mmOpenMenus = new Array;
	}
	mmOpenMenus[mmOpenMenus.length] = "" + subMenuName;
}

function MM_menuResetTimeout() {
	if (mmHideMenuTimer) clearTimeout(mmHideMenuTimer);
	mmHideMenuTimer = null;
}

function MM_menuShowMenu(containName, menuName, xOffset, yOffset, triggerName) {
	MM_menuHideMenus();
	MM_menuResetTimeout();
	MM_menuShowMenuContainer(containName, xOffset, yOffset, triggerName);
	MM_menuShowSubMenu(menuName);
}

function MM_menuShowMenuContainer(containName, x, y, triggerName) {	
	var c = document.getElementById(containName);
	var s = c.style;
	s.visibility = "inherit";
	
	mmOpenContainer = "" + containName;
}
/* /homepage/header.htm */
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;
}
/* Functions that swaps images. */
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;
}

/* Functions that handle preload. */
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];}}
}

/* MK 3/7/06: Additional js for homepage */
function changeBkg(i) {
	/* document.getElementById('imageholder').background = "/img/homepage/center/main_image_"+i+".jpg"; */
	var imgPath
	imgPath = '/img/homepage/center/main_image_' + i + '.jpg'
	document.getElementById('imageholder').style.backgroundImage='url(' + imgPath + ')'
}
			
function setImg() {
	randomBkg(); // Center image
	// Great Reason number & desc - onLoad, #1 item is displayed
	document.great_reason_1.src='/img/homepage/great_reason_1_f2.gif';
	document.getElementById('greatreason1menu_Item_0').style.visibility="visible";
 }
 
function randomBkg() {
  	var i, imgBkg, imgBkgPath, imgNumPath, randomNum, imgCt, imgNum;
	imgBkg=new Array(3); // zero base
	imgCt = 4; // 4 main background images
	imgBkgPath = '/img/homepage/center/main_image_';
	imgNumPath = '/img/homepage/great_reason_';
	for(i=0; i<=3; i+=1) {
		imgBkg[i] = imgBkgPath + (i+1) + '.jpg';
		}
	if (document.images) {
		randomNum = Math.floor((Math.random()*imgCt));
		document.getElementById('imageholder').style.backgroundImage='url(' + imgBkg[randomNum] + ')';
		randomNum = randomNum+1;
		imgNumPath = imgNumPath + (randomNum) + '.gif'; // non-zero base
		imgNum = eval('document.bkg_' + randomNum);
		imgNum.src = imgNumPath;
		}
}

function restoreImg(i,objID,objNum) {
	// i = number (order) of obj
	// objID = partial name of obj
	// objNum = total num of obj to loop through
	var ii, imgName, objName;
	i = parseInt(i);
	objNum = parseInt(objNum);
	switch (objID) {
		case 'bkg': 
			for (ii=0; ii<=objNum-1; ii+=1) {
				if (ii+1 != i) {
					objName = objID + '_' + (ii+1);
					imgName = eval('document.' + objName);
					imgName.src = '/img/homepage/great_reason_' + (ii+1) + '_f2.gif'
				}
			}
			break;
		case 'great_reason':
			document.getElementById('greatreason1menu_Item_0').style.visibility='inherit';
			for (ii=0; ii<=objNum-1; ii+=1) {
				if (ii+1 != i) {
					objName = objID + '_' + (ii+1);
					imgName = eval('document.' + objName);
					imgName.src = '/img/homepage/' + objName + '.gif'
				}
			}
			break;		
		default:
			// nothing to process
	}
}