// JavaScript Document

function validate_search(){
	
	if((!document.getElementById('search').value) || (document.getElementById('search').value == "Search Site...")){
		
		return false;	
		
	}
	
}

function show_menu(id){
	
	hide_menus(id);
	
	hide_submenus('');
	
	if($('#'+id).css("display") == "none"){
		
		$('#'+id).toggle(200);
		
	}
	
}

function hide_menus(id){
	
	if(id != "dropmenu_about"){ if($('#dropmenu_about').css("display") == "block"){ $('#dropmenu_about').toggle(); } }
	if(id != "dropmenu_activities"){ if($('#dropmenu_activities').css("display") == "block"){ $('#dropmenu_activities').toggle(); } }
	if(id != "dropmenu_research"){ if($('#dropmenu_research').css("display") == "block"){ $('#dropmenu_research').toggle(); } }
	if(id != "dropmenu_investigators"){ if($('#dropmenu_investigators').css("display") == "block"){ $('#dropmenu_investigators').toggle(); } }
	if(id != "dropmenu_communities"){ if($('#dropmenu_communities').css("display") == "block"){ $('#dropmenu_communities').toggle(); } }
	if(id != "dropmenu_researchers"){ if($('#dropmenu_researchers').css("display") == "block"){ $('#dropmenu_researchers').toggle(); } }
	
}

function hide_submenus(id){
	
	for(i=0;i<subsubmenus.length;i++){
	
		if(id != subsubmenus[i]){ if($('#'+subsubmenus[i]).css("display") == "block"){ $('#'+subsubmenus[i]).toggle(); } }
		
	}
	
}

var ua = $.browser;

subsubmenus = Array();

function show_menu_sub(id,margin,top,parent){
	
	hide_submenus(id);
	
	if($('#'+id).css("display") == "none"){
		
		if(ua.msie && ua.version.slice(0,3) == "7.0" ) {
			
			//alert($("#"+parent)[0].style.width);
   			
			$('#'+id).css("margin-top", parseInt(top-37));
			$('#'+id).css("left", "178px");
			
		} else {
		
			$('#'+id).css("margin-left", (parseInt(margin)+38));
			$('#'+id).css("margin-top", (parseInt(top*29)-63));
			
		}
		
		$('#'+id).toggle(200);
		
	}
	
}

function view_load(num){
	
	$('#viewimage').animate({opacity:0},200,function(){ view_set(num); });
	
}

function view_next(num){
	
	clearInterval(viewer_interval);
	
	if(num<(viewer_title.length-1)){
		
		num++;
		
	} else {
		
		num = 0;
		
	}
	
	view_load(num);
	
}

function view_set(num){
	
	view_nav_set(num);
	
	//$('#viewtitle').html(viewer_title[num]);
	$('#viewlink').html(viewer_title[num]);
	$('#viewlink').attr("href",viewer_url[num]);
	$('#viewlink').attr("target",viewer_target[num]);
	$('#viewimage').attr("src",viewer_image[num]);
	
	$('#viewimage').animate({opacity:1},300,function(){
				
		viewer_interval = setInterval( function() { view_next(num); }, 5000 );
													 
	});
	
}

function view_nav_set(num){
	
	
	for(i=0;i<viewer_title.length;i++){
		
		$('#viewnav_button_'+i).attr("src",website_root_url + 'media/png/template/viewer-dot-notselected.png');
		
	}
	
	$('#viewnav_button_'+num).attr("src",website_root_url + 'media/png/template/viewer-dot-selected.png');
	
}

function directory_button_over(id){
	
	$('#'+id).animate({opacity:.6},200);
	
}

function directory_button_out(id){
	
	$('#'+id).animate({opacity:1},200);
	
}