var previousClassName = "";
	function show_TabBox(divContentHolder,divNavigationHolder,navigationInactiveClass,divTab2Show,navigationActiveClass,divContent2Show)
	{
		// ---- reset all
		hide_TabBoxContent(divContentHolder);
		reset_TabBoxNavigation(divNavigationHolder,navigationInactiveClass);
		
		// ----- show tab 
		document.getElementById(divTab2Show).className = navigationActiveClass;
		
		// ----- show content 
		document.getElementById(divContent2Show).style.display = 'block'
		var obj=document.getElementById(divContent2Show).getElementsByTagName("div");
 		if (obj.length>0){
 			   for (i=0;i<obj.length;i++)
   				   obj[i].style.display = 'block';
  		}
		
		this.window.focus();
		
	}
	
	function reset_TabBoxNavigation(divNavigationHolder,navigationInactiveClass)
	{
		var obj=document.getElementById(divNavigationHolder).getElementsByTagName("div");
		if (obj.length>0){
 			   for (i=0;i<obj.length;i++)
   				   obj[i].className = navigationInactiveClass;
  		}
	}
	
	/*
		Clear All DIVS under 'divName'
	*/
	function hide_TabBoxContent(divContentHolder)
	{
		var obj=document.getElementById(divContentHolder).getElementsByTagName("div");
	//	alert (obj.length);
		if (obj.length>0){
 			   for (i=0;i<obj.length;i++)
   				   obj[i].style.display = 'none';
  		}
	}