var TabsListArray=new Array("BookingTab","SubjecsTab");
function changeTab(TabToOpen){
	var str="";
	var elm=null;
	for (i=0;i<TabsListArray.length;i++){
		str=TabsListArray[i];
		elm=getItem(str);
		if (str!=TabToOpen){			
			elm.style.display='none';
			replaceStyle( str + "Button","m" + parseInt(parseInt(i) + 1) );		
		}else{
			elm.style.display='block';
			replaceStyle( str + "Button","m" + parseInt(parseInt(i) + 1) + "-act" );			
		}
	}
}