var fold = new Object();
function slide(el) {
    if(fold[el.id] == 1) {
      Effect.SlideUp(el,{duration:0.5});
      fold[el.id] = 0;
    } else {
      Effect.SlideDown(el,{duration:0.5});
      fold[el.id] = 1;
    }
}


function open_no_slide(el) {
      Effect.SlideDown(el,{duration:0});
      fold[el.id] = 1;
}
function close_no_slide(el) {
    if(fold[el.id] == 1) {
      Effect.SlideUp(el,{duration:0});
      fold[el.id] = 0;	  
	} else {
	  fold[el.id] = 0;
	}
}