var pagetitle = new Array("tableservice","quickservice","bar","delivery", "download");
var pageDefault = new Array("table_service.html","quick_service.html","bar.html","delivery.html", "download.html");
var imgsrc = new Array("images/g_table.jpg","images/g_quick.jpg","images/g_bar.jpg","images/g_takeout.jpg","images/main_graphic.jpg");
var imgLogo = new Array();

var bBrowserIsIE = navigator.userAgent.toLowerCase().indexOf("msie")>0 ;
var bBrowserIsFirefox = navigator.userAgent.toLowerCase().indexOf("firefox")>0 ;
var bBrowserIsNetscape = navigator.userAgent.toLowerCase().indexOf("netscape")>0 ;

//alert(navigator.userAgent);
//alert(navigator.appVersion);

function fnInitPage(){
	fnInitLogoImage();
	var iPageIndex = 0;
	var hd = location.search.slice(1);

	if (hd.indexOf("&")>=0) {

		var mappage = hd.split("&");
		if (mappage.length!=2) {
			location.href="index.htm";
		} else {
			for (var i=0;i<5;i++) {
				if (pagetitle[i]==mappage[0]) {
					iPageIndex = i;
					break;
				}
			}
			for (var i=1;i<6;i++) {
				if (bBrowserIsIE) {
					document.all["sub"+i].style.display = (i==(iPageIndex+1)) ? "":"none";
				} else if (bBrowserIsFirefox) {
					var oTab = document.getElementById('sub'+i) ; 
					oTab.style.visibility = (i==(iPageIndex+1))? 'visible':'hidden';
				}
			}
			if (bBrowserIsIE) {
				document.all["masterlogo"].src = imgLogo[iPageIndex].src ;
			} else if (bBrowserIsFirefox) {
				var oIMG = document.getElementById('masterlogo') ; 
				oTab.src = imgLogo[iPageIndex].src ;
			}
			iframe_Main.location.href=mappage[1]+".html";
		}
	} else {
		for (var i=0;i<5;i++) {
			if (pagetitle[i]==hd) {
				iPageIndex = i;
				break;
			}
		}
		fnSwitchPage(iPageIndex+1);
		fnOpenLnk();
	}
}

function fnInitLogoImage(){
	for (var i=0;i<5;i++) {
		imgLogo[i] = new Image;
		imgLogo[i].src = imgsrc[i];
	}
}

function fnSwitchPage(iIndex){
	for (var i=1;i<6;i++) {
		if (bBrowserIsIE) {
			document.all["sub"+i].style.display = (i==iIndex) ? "":"none";
		} else if (bBrowserIsFirefox) {
			var oTab = document.getElementById('sub'+i) ; 
			oTab.style.display = (i==iIndex)? "":"none";
		}
	}
	if (bBrowserIsIE) {
		document.all["masterlogo"].src = imgLogo[iIndex-1].src ;
	} else if (bBrowserIsFirefox) {
		var oIMG = document.getElementById('masterlogo') ; 
		oTab.src = imgLogo[iIndex-1].src ;
	}
	iframe_Main.location.href=pageDefault[iIndex-1];
}

function fnOpenLnk(){
	if (bBrowserIsIE) {
		document.all["bbbb5"].style.display = document.all["bbbb5"].style.display=="" ? "none":"";
	} else if (bBrowserIsFirefox) {
		var oTab = document.getElementById('bbbb5') ; 
		oTab.style.visibility = (oTab.style.visibility=='hidden')? 'visible':'hidden';
	}
}