function menuVedio(){
        DivSetVisible('oMenuCamera',false);
        DivSetVisible('oMenuVedio',true );
        ChangeClassStyle('tdMenuCamera','tab');
        ChangeClassStyle('tdMenuVedio','tabSelected');
        //ChangeClassHover('tdMenuVedio','tabHover');
    }
 
    function menuCamera(){
        DivSetVisible('oMenuVedio',false );
        DivSetVisible('oMenuCamera',true);
        ChangeClassStyle('tdMenuVedio','tab');
        ChangeClassStyle('tdMenuCamera','tabSelected');
   }

   function ChangeClassStyle(id,szClass){
   
     var oRef = document.getElementById(id)
	 oRef.className  = szClass;
   }
   
    function ChangeClassHover(id,szClass){
   
     var oRef = document.getElementById(id)
     oRef.onmouseover= function() { this.className='tab'; }
   }
 
    function DivSetVisible(oDiv,state){
        var DivRef = document.getElementById(oDiv)
        if(state)
	            DivRef.style.display = "";
        else
	            DivRef.style.display = "none";
    }