function changeMainContent(menuId,subMenuId){
	for (var i=0; i<6; i++)	
	{
		document.getElementById('main'+i).className="hide";
		document.getElementById('mainMenu'+i).className="notSelected";
		document.getElementById("mainMenu"+i).style.color="#000000";
		
		//document.getElementById("mainMenu"+i).style.backgroundImage = "url(../images/tab_inactive.jpg)";
	}		
	document.getElementById('main'+menuId).className="show";
	document.getElementById("mainMenu"+menuId).className="selected";
	document.getElementById("mainMenu"+menuId).style.color="#000000";

	
//	document.getElementById("mainMenu"+menuId).style.backgroundImage = "url(../images/tab_active.jpg)";
	if(subMenuId!=null)
		changeSubContent(subMenuId);
}

function changeSubContent(subMenuId){
	var menuLink;
	var menuSub;
	for (var i=1; i<5; i++)	
	{
		menuLink=null;
		menuSub=null;
		menuLink=document.getElementById('sub'+i);
		if(menuLink!=null)
			menuLink.className="hide";
		menuSub=document.getElementById("subMenu"+i);
		if(menuSub!=null)
		{
			menuSub.style.color="#CBCBCB";
		
			menuSub.className="notSubSelected";
		}	
		
	}		
	document.getElementById('sub'+subMenuId).className="show";
	document.getElementById("subMenu"+subMenuId).style.color="#fff";	
	
	document.getElementById("subMenu"+subMenuId).className="subSelected";
}