function toggleSlide(objname){
		if(document.getElementById(objname).style.display == "none"){
			// div is hidden, so let's slide down
			new Effect.SlideDown(objname,{duration:0.5})
		}else{
			// div is not hidden, so slide up
			new Effect.SlideUp(objname)
		}
		updateTabs(objname);
	}

	function updateTabs(objname){
	  var all_items   = new Array();
	  all_items[0]   =  'mydiv3';
	  all_items[1]   =  'mydiv4';   
	  all_items[2]   =  'mydiv5';   
	  all_items[3]   =  'mydiv6';      
	  all_items[4]   =  'mydiv7';      
   
	   for (i=0;i<all_items.length;i++) {
	     var current_item = all_items[i]
	     var current_link = all_items[i] + '_link'

	     if (objname != all_items[i] ) {
	        $(current_link).className = "tabup"
					if($(current_item).style.display != "none"){
						new Effect.SlideUp(current_item)
					}
	      }
	     else {
	       $(current_link).className = "tabdown"       
	     }
	   }     
	}