// Dropdown menu script
function showtab(id,objParent){
	objLeft=0;
	objTop=0;
		  while(objParent && objParent.tagName.toUpperCase() != "BODY" )
		  {
			objLeft  += objParent.offsetLeft;
			objTop  += objParent.offsetTop;
			objParent = objParent.offsetParent;
		  }
		  var left=objLeft-16;
		  var top=objTop+14;
		  document.getElementById(id).style.visibility='visible';
		  document.getElementById(id).style.left=left+'px';
		  document.getElementById(id).style.top=top+'px';
}