var inProgress = 0;
Effect.OpenUp = function(element) {
     element = $(element);
     new Effect.BlindDown(element, arguments[1] || {});
 }

 Effect.CloseDown = function(element) {
     element = $(element);
     new Effect.BlindUp(element, arguments[1] || {});
 }

 Effect.Combo = function(element) {
     element = $(element);
     if(inProgress == 0){
     	inProgress = 1;
	     if(element.style.display == 'none') { 
	          new Effect.OpenUp(element, arguments[1] || {}); 
	     }else { 
	          new Effect.CloseDown(element, arguments[1] || {}); 
	     }
	  setTimeout('inProgress = 0',1000);
     }
 }