function preloadImages() {
	if (document.images) {
		for (var i = 0; i < preloadImages.arguments.length; i++) {
			(new Image()).src = preloadImages.arguments[i];
		}
	}
}
function roll(img_name, img_src){document[img_name].src = img_src;}


var isNav4, isIE4, isNav6 = false;
var range = "";
var styleObj = "";

if (navigator.appVersion.charAt(0) >= 4) {
	if (navigator.appName == "Netscape") {
		if (navigator.appVersion.charAt(0) >= 5) {isNav6 = true;}
		else {isNav4 = true;}
	}
	else {
		isIE4 = true;
		range = "all.";
		styleObj = ".style";
	}
}

function getObject(obj) {
	var theObj;
	if (typeof obj == "string") {
		if (isNav6) {
			theObj = document.getElementById(obj);
			if (theObj != null) theObj = theObj.style;
		}
		else {
			theObj = eval("document." + range + obj);
			if (theObj != null) theObj = eval("theObj" + styleObj);
		}
	}
	else {theObj = obj;}
	return theObj;
}

function show() {
	var theObj;
	for (var i = 0; i < show.arguments.length; i++) {
		theObj = getObject(show.arguments[i]);
		if (theObj != null) {
			theObj.display = "block";
			theObj.visibility = "visible";
		}
	}
}

function hide() {
	var theObj;
	for (var i = 0; i < hide.arguments.length; i++) {
		theObj = getObject(hide.arguments[i]);
		if (theObj != null) {
			theObj.display = "none";
			theObj.visibility = "hidden";
		}
	}
}


function init() {	
	preloadImages('images/nav_sub_Home_on.gif', 'images/nav_sub_Menu_on.gif', 'images/nav_sub_Locations_on.gif', 'images/nav_sub_GiftCards_on.gif', 'images/nav_sub_ToGo_on.gif', 'images/nav_sub_Emails_on.gif', 'images/nav_sub_AboutUs_on.gif', 'images/nav_sub_RealHeroes_on.gif');
}

window.onload = init;


/**
 * Copy the value of an input field's title attribute to its value attribute.
 * Clear the input field on focus if its value is the same as its title.
 * Repopulate the input field on blur if it is empty.
 * Hide the input field's associated label if it has one.
 */
var autoPopulate = {
	sInputClass:'populate', // Class name for input elements to autopopulate
	/**
	 * Main function
	 */
	init:function() {
		// Check for DOM support
		if (!document.getElementById || !document.createTextNode) {return;}
		// Find all input elements with the given className
		//var arrInputs = autoPopulate.getElementsByClassName(document, 'input', autoPopulate.sInputClass);
		var arrInputs = document.getElementsByTagName('input');
		var iInputs = arrInputs.length;
		var oInput;
		for (var i=0; i<iInputs; i++) {
			oInput = arrInputs[i];
			// Make sure it's a text input
			if (oInput.type != 'text') { continue; }
			// If value is empty and title is not, assign title to value
			if ((oInput.value == '') && (oInput.title != '')) { oInput.value = oInput.title; }
			// Add event handlers for focus and blur
			autoPopulate.addEvent(oInput, 'focus', function() {
				// If value and title are equal on focus, clear value
				if (this.value == this.title) {
					this.value = '';
					this.select(); // Make input caret visible in IE
				}
			});
			autoPopulate.addEvent(oInput, 'blur', function() {
				// If the field is empty on blur, assign title to value
				if (!this.value.length) { this.value = this.title; }
			});
		}
	},
	/**
	 * getElementsByClassName function included here for portability.
	 * Remove if you are already using one.
	 * Written by Jonathan Snook, http://www.snook.ca/jonathan
	 * Add-ons by Robert Nyman, http://www.robertnyman.com
	 */
	getElementsByClassName:function(oElm, strTagName, strClassName) {
	    var arrElements = (strTagName == "*" && document.all)? document.all : oElm.getElementsByTagName(strTagName);
	    var arrReturnElements = new Array();
	    strClassName = strClassName.replace(/\-/g, "\\-");
	    var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
	    var oElement;
	    for(var i=0; i<arrElements.length; i++){
	        oElement = arrElements[i];      
	        if(oRegExp.test(oElement.className)){
	            arrReturnElements.push(oElement);
	        }   
	    }
	    return (arrReturnElements)
	},
	/**
	 * addEvent function included here for portability.
	 * Remove if you are already using an addEvent/DOMReady function.
	 * Found at http://www.quirksmode.org/blog/archives/2005/10/_and_the_winner_1.html
	 */
	addEvent:function(obj, type, fn) {
		if (obj.addEventListener)
			obj.addEventListener(type, fn, false);
		else if (obj.attachEvent) {
			obj["e"+type+fn] = fn;
			obj[type+fn] = function() {obj["e"+type+fn](window.event);}
			obj.attachEvent("on"+type, obj[type+fn]);
		}
	}
};

/**
 * Init on window load.
 * Replace this with a call to your own addEvent/DOMReady function if you use one.
 */
autoPopulate.addEvent(window, 'load', autoPopulate.init);   


function menuPopUp(theURL, winname, width, height){
	var nTop = (screen.height - height) / 2;
	var nLeft = (screen.width - width) / 2;
	var winPop = window.open(theURL,winname,"width="+width+",height="+height+",location=0,menubar=0,resizable=0,scrollbars=0,status=0,titlebar=0,toolbar=0,top="+nTop+",left="+nLeft);
	winPop.focus();
}