var flag = ""
	var subFlag = ""
	var t = null
	
	function imgOn(imgName, divName) {
		if (navigator.appVersion.charAt(0) == "4" && navigator.appName == "Netscape") {
			document[divName].document[imgName].src = eval(imgName + "_on.src");
		} else {
			document[imgName].src = eval(imgName + "_on.src");
		}
	}

	function imgOff(imgName, divName) {
		if (navigator.appVersion.charAt(0) == "4" && navigator.appName == "Netscape") {
			document[divName].document[imgName].src = eval(imgName + "_off.src");
		} else {
		document[imgName].src = eval(imgName + "_off.src");
		}
	}
	
	function divShow(divShowName) {
	if (navigator.appVersion.charAt(0) == "4" && navigator.appName == "Netscape") {
		Reference = eval("document.subnav" + divShowName)
	} else {
		Reference = eval("document.getElementById('subnav" + divShowName + "').style")
	}
	Reference.visibility = "visible"
	}
	
	function divHide(divHideName) {
	if (navigator.appVersion.charAt(0) == "4" && navigator.appName == "Netscape") {
		Reference = eval("document.subnav" + divHideName)
	} else {
		Reference = eval("document.getElementById('subnav" + divHideName + "').style")
	}
	Reference.visibility = "hidden"
	}
	
	function subMenu(divShowName, divName) {
	clearTimeout(t)
	//dropdown
	divShow(divShowName)
	if (pflag != "" && pflag != divShowName) {
		divHide(pflag)
	}
	if (flag != "" && flag != divShowName) { //if a dropdown is visible, hide it, unless it's this dropdown
		divHide(flag)
	}
	
	//image
	imgOn(divShowName, divName)
	if (flag !="" && flag != divShowName) { //if an image is selected, turn it off, unless it's this image
		imgOff(flag, divName)
	}
	
	//set a flag to show that this image is selected
	flag = divShowName 
	
	}
	
	function subMenuOff(subMenuOffName, divName) {
	 divHide(subMenuOffName)
	 if (pflag != "") {
	 	divShow(pflag)
	 }
	 imgOff(subMenuOffName, divName)
	}
	
	function subMenuOffDelay(subMenuOffName, divName) {
	t = eval("setTimeout(\"subMenuOff('" + subMenuOffName +"','" + divName + "')\", 2000) ")
	}
	
	if (document.images){
	letter_off = new Image();     // Active images
	letter_off.src="images/nav_letter_off.gif";  
	letter_on = new Image();     // Active images
	letter_on.src="images/nav_letter_on.gif";  
	catalyst_off = new Image();     // Active images
	catalyst_off.src="images/nav_catalyst_off.gif";  
	catalyst_on = new Image();     // Active images
	catalyst_on.src="images/nav_catalyst_on.gif";  
	businesses_off = new Image();     // Active images
	businesses_off.src="images/nav_businesses_off.gif";  
	businesses_on = new Image();     // Active images
	businesses_on.src="images/nav_businesses_on.gif";  
	financials_off = new Image();     // Active images
	financials_off.src="images/nav_financials_off.gif";  
	financials_on = new Image();     // Active images
	financials_on.src="images/nav_financials_on.gif";  
	corporate_off = new Image();     // Active images
	corporate_off.src="images/nav_corporate_off.gif";  
	corporate_on = new Image();     // Active images
	corporate_on.src="images/nav_corporate_on.gif";  
	}