//Display Tariff window
	function tariffWindow() {
		tarWindow = window.open("tariff.htm" , "dirwin" ,  "width=600,height=650")
		}

// drop down menu

		stdBrowser = (document.getElementById) ? true : false

		function toggleMenu(currElem,nextPos) {
			menuObj = (stdBrowser) ? document.getElementById(currElem).style : eval("document." + currElem)
			if (toggleMenu.arguments.length == 1) {
				nextPos = (parseInt(menuObj.top) == 0) ? -90 : 0
			}
			menuObj.top = (stdBrowser) ? nextPos + "px" : nextPos
		}

// Popup window 
		function popUp(evt,currElem,topPix) {
			popUpWin = (stdBrowser) ? document.getElementById(currElem).style : eval("document." + currElem)
			if (document.all) {
				popUpWin.pixelTop = topPix + 100
				popUpWin.pixelLeft = Math.max(2,parseInt(evt.x)-330)
							}
			else {
				if (stdBrowser) {
					popUpWin.top = topPix + 100 + "px"
					popUpWin.left = Math.max(2,parseInt(evt.pageX)-330) + "px"
				}
				else {
					popUpWin.top = topPix + 100
					popUpWin.left = Math.max(2,parseInt(evt.pageX)-330)
				}
			}

			popUpWin.visibility = "visible"
		}

		function popDown(currElem) {
			popUpWin = (stdBrowser) ? document.getElementById(currElem).style : eval("document." + currElem)
			popUpWin.visibility = "hidden"
		}

	if (document.images) {
		infButton1 = new Image
		infButton2 = new Image
		infButton3 = new Image
		infButton1.src="graphics/inf1.gif"
		infButton2.src="graphics/inf2.gif"
		infButton3.src="graphics/inf3.gif"

	   htfButton1 = new Image
		htfButton2 = new Image
		htfButton3 = new Image
		htfButton1.src="graphics/htf1.gif"
		htfButton2.src="graphics/htf2.gif"
		htfButton3.src="graphics/htf3.gif"
	
		emqButton1 = new Image
		emqButton2 = new Image
		emqButton3 = new Image
		emqButton1.src="graphics/emq1.gif"
		emqButton2.src="graphics/emq2.gif"
		emqButton3.src="graphics/emq3.gif"

		tarButton1 = new Image
		tarButton2 = new Image
		tarButton3 = new Image
		tarButton1.src="graphics/tar1.gif"
		tarButton2.src="graphics/tar2.gif"
		tarButton3.src="graphics/tar3.gif"

		homButton1 = new Image
		homButton2 = new Image
		homButton3 = new Image
		homButton1.src="graphics/hom1.gif"
		homButton2.src="graphics/hom2.gif"
		homButton3.src="graphics/hom3.gif"

		cotButton1 = new Image
		cotButton2 = new Image
		cotButton3 = new Image
		cotButton1.src="graphics/cot1.gif"
		cotButton2.src="graphics/cot2.gif"
		cotButton3.src="graphics/cot3.gif"

		printButton1 = new Image
		printButton2 = new Image
		printButton3 = new Image
		printButton1.src="graphics/dirprint1.gif"
		printButton2.src="graphics/dirprint2.gif"
		printButton3.src="graphics/dirprint3.gif"

	}
	else {
		infButton1=""
		infButton2=""
		infButton3=""
		infButton.document=""

		htfButton1=""
		htfButton2=""
		htfButton3=""
		htfButton.document=""

		emqButton1=""
		emqButton2=""
		emqButton3=""
		emqButton.document=""

		tarButton1=""
		tarButton2=""
		tarButton3=""
		tarButton.document=""

		homButton1=""
		homButton2=""
		homButton3=""
		homButton.document=""

		cotButton1=""
		cotButton2=""
		cotButton3=""
		cotButton.document=""

		printButton1=""
		printButton2=""
		printButton3=""
		printButton.document=""

	}