/* TabControl 3
Written by Hunter Beanland
Global vars initialised in the page:
strPrevTab - current tab index
strPrevContentID - current tab's content tag ID
intTabType - tab type (1=Frames;2=Postback;3=Dynamic)
strHeight - content height
strWidth - content width
strOnClick - onclick command
tabList - frames only. array of tab source pages
*/
//Cache images
if (document.images) {
	mouseleft = new Image();	mouseleft.src = TabImagePath+"tab_mouse_left.gif";
	mousemid = new Image();	mousemid.src = TabImagePath+"tab_mouse_mid.gif";
	mouseright = new Image();	mouseright.src = TabImagePath+"tab_mouse_right.gif";
	offleft = new Image();	offleft.src = TabImagePath+"tab_off_left.gif";
	offmid = new Image();	offmid.src = TabImagePath+"tab_off_mid.gif";
	offright = new Image();	offright.src = TabImagePath+"tab_off_right.gif";
	onleft = new Image();	onleft.src = TabImagePath+"tab_on_left.gif";
	onmid = new Image();	onmid.src = TabImagePath+"tab_on_mid.gif";
	onright = new Image();	onright.src = TabImagePath+"tab_on_right.gif";
}

function changeTabs(tab,strContentID) {
	//Dynamic/Div only: Swap current shown tab
	var strBack = tab.style.backgroundImage;
	var strID = tab.id;
	var strTab = strID.replace("TabMid","");
	
//	alert("strID="+strID+" strContentID="+strContentID);	
	
	if ((strBack.indexOf("off") > -1) || (strBack.indexOf("mouse") > -1)) {
		if (strOnClick != "") tabOnClick(strTab);
		tab.style.backgroundImage = "url("+ onmid.src +")";
		document.getElementById("TabLeft"+strTab).src = onleft.src;
		document.getElementById("TabRight"+strTab).src = onright.src;
		document.getElementById("TabMid"+strPrevTab).style.backgroundImage = "url("+ offmid.src +")";
		document.getElementById("TabLeft"+strPrevTab).src = offleft.src;
		document.getElementById("TabRight"+strPrevTab).src = offright.src;
		try {
			document.getElementById(strPrevContentID).style.display="none";
		} catch(e) {
			alert("Can not find Content ID of: " + strPrevContentID);
		}
		try {
			document.getElementById(strContentID).style.display="block";
		} catch(e) {
			alert("Can not find Content ID of: " + strContentID);
		}
		strPrevTab = strTab;
		strPrevContentID = strContentID;
		if ((intTabType == 1) && ((strWidth =="*") || (strHeight =="*"))) resizeTabControl();
		
		var cs_startfrm = location.href.indexOf('/',8);
		var cs_endon = location.href.indexOf('.cfm');
		if(cs_startfrm>0 && cs_endon > cs_startfrm){
			var usecname = location.href.substring(cs_startfrm+1,cs_endon);
			//alert(usecname);
         if(usecname=='artists'){
            if(strTab==2){
               if(parent.maploaded1==0){
                  loadthemap2();
               }
            }
         }
         /*
         if(usecname=='artwork'){
            if(strTab==5){
               alert(parent.maploaded2);            
               if(parent.maploaded2==1){
                  loadthemap();
               }
            }
         }  */       
			var tabid = strTab;
			var exdate=new Date();
			var expiredays = 365;
  			exdate.setDate(exdate.getDate()+expiredays);
  			document.cookie=usecname+ "=" +escape(tabid)+((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
		}		
	}
}

function TabOver(tab) {
	//Toggle high-light of mouse over tab
	var strBack = tab.style.backgroundImage;
	var strID = tab.id;
	var strTab = strID.replace("TabMid","");
	if (strBack.indexOf("off") > -1) {
		tab.style.backgroundImage = "url("+ mousemid.src +")";
		document.getElementById("TabLeft"+strTab).src = mouseleft.src;
		document.getElementById("TabRight"+strTab).src = mouseright.src;
	} else if (strBack.indexOf("mouse") > -1) {
		tab.style.backgroundImage = "url("+ offmid.src +")";
		document.getElementById("TabLeft"+strTab).src = offleft.src;
		document.getElementById("TabRight"+strTab).src = offright.src;
	}
}

function tabHome() {
	//Home button - inline tab type only
	document.getElementById("TabContent" + strPrevTab).src = tabList[strPrevTab-1];
}

function resizeTabControl() {
	//TabContent (Frames mode only) to be size of page - even if the window is resized
	var totalOffsetH=0,totalOffsetW=0;
	frm = document.getElementsByTagName("IFRAME")
	ptag = frm[0];
	pTagName = "IFRAME";
	while (pTagName != "BODY") {
		ptag = ptag.offsetParent;
		try {
			pTagName = ptag.tagName.toUpperCase();
			totalOffsetH = totalOffsetH + ptag.offsetTop;
			totalOffsetW = totalOffsetW + ptag.offsetLeft;
		} catch (e) {
			pTagName = "BODY";
		} 
	}
	for (i=0; i<frm.length; i++) {
		if (frm[i].id.substring(0,10) == "TabContent") {
			if (strHeight == "*") frm[i].height = document.body.clientHeight-totalOffsetH-frm[i].offsetTop-2;
			if (strWidth == "*") frm[i].width = document.body.clientWidth-totalOffsetW-frm[i].offsetLeft-2;
		}
	}
}

function tabOnClick(strTabIndex) {
	//Execute the user defined onclick command
	try {
		eval(strOnClick.replace("{0}",strTabIndex));
	} catch (e) {
		alert("Tab Control 'OnClick' Error:\n" + e.message);
	}
}