function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		
		// Load the over button states
		navigation_tabs_01_over = newImage("../images/navigation/navigation.tabs_01-over.gif");
		navigation_tabs_02_over = newImage("../images/navigation/navigation.tabs_02-over.gif");
		navigation_tabs_03_over = newImage("../images/navigation/navigation.tabs_03-over.gif");
		navigation_tabs_04_over = newImage("../images/navigation/navigation.tabs_04-over.gif");
		navigation_tabs_05_over = newImage("../images/navigation/navigation.tabs_05-over.gif");
		
		// Load the default button states
		navigation_tabs_01_default = newImage("../images/navigation/navigation.tabs_01.gif");
		navigation_tabs_02_default = newImage("../images/navigation/navigation.tabs_02.gif");
		navigation_tabs_03_default = newImage("../images/navigation/navigation.tabs_03.gif");
		navigation_tabs_04_default = newImage("../images/navigation/navigation.tabs_04.gif");
		navigation_tabs_05_default = newImage("../images/navigation/navigation.tabs_05.gif");
		
		// Load button hover states
		button_hover	= newImage ("../images/buttons/button-background-hover.gif");
		button_info		= newImage ("../images/buttons/button-info-hover.gif");
		button_warning	= newImage ("../images/buttons/button-warning-hover.gif");
		
		preloadFlag = true;
	}
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function nav( divNum,divTot ){
	var id = 0;
	var display = "";
	var i = divTot;
	var j = divTot;
	
	while (i > 0){
		setIdProperty("sub" + i, "display", "none");
		setIdProperty("headp" + i, "display", "none");
		setIdProperty("head" + i, "display", "inline");	
		i--;
	}
	
	setIdProperty("sub" + divNum, "display", "block");
	
}

function navi( divNum,divTot ){
	var id = 0;
	var display = "";
	var i = divTot;
	var j = divTot;
	
	while (i > 0){
		setIdProperty("sub" + i, "display", "none");
		i--;
	}
	while (j > 0){
		if(j != divNum){
			setIdProperty("headi" + j, "display", "inline");
			setIdProperty("headpi" + j, "display", "none");			
		}else{
			setIdProperty("headpi" + divNum, "display", "inline");
			setIdProperty("headi" + divNum, "display", "none");			
		}
		j--;
	}		

	setIdProperty("sub" + divNum, "display", "block");
	
}

function setIdProperty(id, property, value){

	var styleObject = document.getElementById( id );
	if (styleObject != null){
		styleObject = styleObject.style;
		styleObject[ property ] = value;
	}

}