function showTab(obj) {
	if (obj.getAttribute('id') == selectedTab.getAttribute('id')) return false;
	obj.className='selected';
	var content=document.getElementById(obj.getAttribute('id') + 'Content');
	content.style.display='block';
	selectedTab.className='';
	content=document.getElementById(selectedTab.getAttribute('id') + 'Content');
	content.style.display='none';
	selectedTab = obj;
}
function showSubTab(obj) {
	if (obj.getAttribute('id') == selectedSubTab.getAttribute('id')) return false;
	obj.className='selected';
	var content=document.getElementById(obj.getAttribute('id') + 'Content');
	if (content)
		content.style.display='block';
	selectedSubTab.className='';
	content=document.getElementById(selectedSubTab.getAttribute('id') + 'Content');
	if (content)
		content.style.display='none';
	selectedSubTab = obj;
}
function goTabLocation(tab, url) {
	if (tab.className != 'selected')
		window.location=url;
}
function showLoading(id) {
	document.getElementById(id).innerHTML = '<div class="loading">loading . . . <img alt="please wait" src="/images/interface/loading.gif"></div>';
}
/* graphical tab behaviors */
function over(tab) {
	if (tab.id.substr(1) != selectedTabNum)
		tab.className = "tab over";
}
function out(tab) {
	if (tab.id.substr(1) != selectedTabNum)
		tab.className = "tab B";
}
function ct(tab, name) {
	var newSelectedTabNum = tab.id.substr(1);
	if (newSelectedTabNum != selectedTabNum) {
		document.getElementById('t'+ selectedTabNum).className = "tab B";
		document.getElementById('t'+ selectedTabNum +'L').className = "tab "+(selectedTabNum=='1'?'BL':(Number(selectedTabNum) < Number(newSelectedTabNum)?'BI':'BD'));
		document.getElementById('t'+ (Number(selectedTabNum)+1) +'L').className = "tab "+(selectedTabNum==tabs?'BR':(Number(selectedTabNum) < Number(newSelectedTabNum)?'BI':'BD'));
		tab.className = "tab F";
		document.getElementById('c'+ selectedTabNum).style.display='none';
		document.getElementById('t'+ newSelectedTabNum +'L').className = "tab "+(newSelectedTabNum==1?'FL':'FI');
		document.getElementById('t'+ (Number(newSelectedTabNum)+1) +'L').className = "tab "+(newSelectedTabNum==tabs?'FR':'FD');
		document.getElementById('c'+ newSelectedTabNum).style.display='block';
		selectedTabNum=newSelectedTabNum;
	}
}
/* graphical subtab behaviors */
function sover(tab) {
	if (tab.id.substr(tab.id.indexOf("_")+2) != eval(tab.id.substr(0,tab.id.indexOf("_")) + '.selectedTabNum'))
		tab.className = "tab over";
}
function sout(tab) {
	if (tab.id.substr(tab.id.indexOf("_")+2) != eval(tab.id.substr(0,tab.id.indexOf("_")) + '.selectedTabNum'))
		tab.className = "tab B";
}
function cst(tab) {
	var selectedSubTabNum = eval(tab.id.substr(0,tab.id.indexOf("_")) + '.selectedTabNum');
	if (selectedSubTabNum == undefined) selectedSubTabNum=1;
	var newSelectedTabNum = tab.id.substr(tab.id.indexOf("_")+2);
	var id = tab.id.substr(0,tab.id.indexOf("_"));
	var tabs = eval(tab.id.substr(0,tab.id.indexOf("_")) + '.subTabs');
	if (newSelectedTabNum != selectedSubTabNum) {
		document.getElementById(id +'_t'+ selectedSubTabNum).className = "tab B";
		document.getElementById(id +'_t'+ selectedSubTabNum +'L').className = "tab "+(selectedSubTabNum=='1'?'BL':(Number(selectedSubTabNum) < Number(newSelectedTabNum)?'BI':'BD'));
		document.getElementById(id +'_t'+ (Number(selectedSubTabNum)+1) +'L').className = "tab "+(selectedSubTabNum==tabs?'BR':(Number(selectedSubTabNum) < Number(newSelectedTabNum)?'BI':'BD'));
		tab.className = "tab F";
		selectedSubTabContent = document.getElementById(id +'_c'+ selectedSubTabNum);
		if (selectedSubTabContent) selectedSubTabContent.style.display='none';
		document.getElementById(id +'_t'+ newSelectedTabNum +'L').className = "tab "+(newSelectedTabNum==1?'FL':'FI');
		document.getElementById(id +'_t'+ (Number(newSelectedTabNum)+1) +'L').className = "tab "+(newSelectedTabNum==tabs?'FR':'FD');
		newSelectedSubTabContent = document.getElementById(id +'_c'+ newSelectedTabNum);
		if (newSelectedSubTabContent) newSelectedSubTabContent.style.display='block';
		eval(tab.id.substr(0,tab.id.indexOf("_")) + '.selectedTabNum='+newSelectedTabNum);
	}
}