// JavaScript Document
function show(element, element2) {
     var srcElement = document.getElementById(element);
	 var srcElement2 = document.getElementById(element2);

           srcElement.style.visibility= 'visible';
		   srcElement2.style.visibility= 'hidden';
        
  }
function show_3(element, element2, element3) {
     var srcElement = document.getElementById(element);
	 var srcElement2 = document.getElementById(element2);
	 var srcElement3 = document.getElementById(element3);

     if(srcElement != null) {
        if(srcElement.style.visibility == "visible") {
           srcElement.style.visibility= 'visible';
		   srcElement2.style.visibility= 'hidden';
		   srcElement3.style.visibility= 'hidden';
        }
        else {
               srcElement.style.visibility='visible';
			   srcElement2.style.visibility='hidden';
			   srcElement3.style.visibility='hidden';
        }
        return false;
     }
  }