/*-----------------------------------------------------------
    Toggles element's display value
    Input: any number of element id's
    Output: none 
    ---------------------------------------------------------*/
function toggleDisp() {
	for (var i=0;i<arguments.length;i++){
		var d = $(arguments[i]);
		if (d.style.display == 'none')
			d.style.display = 'block';
		else
			d.style.display = 'none';
	}
}
/*-----------------------------------------------------------
    Toggles tabs - Closes any open tabs, and then opens current tab
    Input:     1.The number of the current tab
               2.The number of tabs
               3.(optional)The number of the tab to leave open
               4.(optional)Pass in true or false whether or not to animate the open/close of the tabs
    Output: none 
    ---------------------------------------------------------*/
function toggleTab(num,numelems,opennum,animate) {
	if ($('tabContent'+num).style.display == 'none'){
		for (var i=1;i<=numelems;i++){
			if ((opennum == null) || (opennum != i)){
				var temph = 'tabHeader'+i;
				var h = $(temph);
				if (!h){
					var h = $('tabHeaderActive');
					h.id = temph;
				}
				var tempc = 'tabContent'+i;
				var c = $(tempc);
				if(c.style.display != 'none'){
					if (animate || typeof animate == 'undefined')
						Effect.toggle(tempc,'blind',{duration:0.5, queue:{scope:'menus', limit: 3}});
					else
						toggleDisp(tempc);
				}
			}
		}
		var h = $('tabHeader'+num);
		if (h)
			h.id = 'tabHeaderActive';
		h.blur();
		var c = $('tabContent'+num);
		c.style.marginTop = '2px';
		if (animate || typeof animate == 'undefined'){
			Effect.toggle('tabContent'+num,'blind',{duration:0.5, queue:{scope:'menus', position:'end', limit: 3}});
		}else{
			toggleDisp('tabContent'+num);
		}
	}
}
/*-----------------------------------------------------------
    Prev and next controls
    Input    1. "prev" or "next"
             2.The number of tabs
             3.(optional)The number of the tab to leave open
             4.(optional)Pass in true or false whether or not to animate the open/close of the tabs
    Output: none 
    ---------------------------------------------------------*/
function controlTab(dir,numelems,opennum,animate) {
	var active = 1;
	for (var i=1;i<=numelems;i++){
		var tempc = 'tabContent'+i;
		var c = $(tempc);
		if(c.style.display != 'none'){
			var active = i;
		}
	}
	if( dir == "prev" ){
		if(active > 1){// TODO: revisar numero inicial
			var new_number = active - 1;
		}
	} else {
		if(active <= numelems){
			var new_number = active + 1;
		}
	}
	toggleTab(new_number,numelems,opennum,animate);
}