function preloadImages()
		{
			var imgList = preloadImages.arguments;
			var img = new Array();
			for(var i = 0; i < imgList.length; i++)
			{
				img[i] = new Image();
				img[i].src = imgList[i];
			}
		}



function ShowEnter()
{ 			
        var enter=document.getElementById('kafedra');
        var enter_bottom=document.getElementById('kafedra-bottom');
        var enter_img=document.getElementById('kafedra-button');         
        if(enter)
        {		                		
                if(enter.className=='green_area_inv')
                {
                		var enter_auth=document.getElementById('auth');        
        				var enter_auth_r=document.getElementById('r_auth');        
        				var enter_auth_img=document.getElementById('auth-button');
						enter_auth_r.className = 'right_inv';
                        enter_auth_img.src = '/bitrix/templates/msu/images/authorize.gif';
                        enter_auth.className='auth_area_inv';        				
                        var enter_s=document.getElementById('search');        
        				var enter_s_r=document.getElementById('r_search');        
        				var enter_s_img=document.getElementById('search-button');        
                        enter_s_r.className = 'right2_inv';
                        enter_s_img.src = '/bitrix/templates/msu/images/search_icon.gif';
                        enter_s.className='auth_area_inv';                                                
                        enter.className='green_area';                        
                        enter_bottom.className='kafedra-bottom';                        
                        enter_img.src = '/bitrix/templates/msu/images/kafedra-button-active.jpg';                                 
                }
                else
                {
                		enter_bottom.className='kafedra-bottom_inv';                        
                        enter_img.src = '/bitrix/templates/msu/images/kafedra-button.gif';
                        enter.className='green_area_inv';                        
                }
        }
}
function HideEnter()
{ 			
        var enter=document.getElementById('kafedra');
        var enter_bottom=document.getElementById('kafedra-bottom');
        var enter_img=document.getElementById('kafedra-button');         
        if(enter)
        {		                		
			enter_bottom.className='kafedra-bottom_inv';                        
			enter_img.src = '/bitrix/templates/msu/images/kafedra-button.gif';
			enter.className='green_area_inv';                        
        }
}




function ShowAuth()
{ 			
        var enter=document.getElementById('auth');        
        var enter_r=document.getElementById('r_auth');        
        var enter_img=document.getElementById('auth-button');         
        if(enter)
        {		                		
                if(enter.className=='auth_area_inv')
                {
                		enter_r.className = 'right';
                        enter.className='auth_area';                                                
                        enter_img.src = '/bitrix/templates/msu/images/authorize_active.gif';                        
                        var enter=document.getElementById('search');        
        				var enter_r=document.getElementById('r_search');        
        				var enter_img=document.getElementById('search-button');        
                        enter_r.className = 'right2_inv';
                        enter_img.src = '/bitrix/templates/msu/images/search_icon.gif';
                        enter.className='auth_area_inv';
                        var enter_kaf=document.getElementById('kafedra');
        				var enter_kaf_bottom=document.getElementById('kafedra-bottom');
        				var enter_kaf_img=document.getElementById('kafedra-button');                          
                        enter_kaf_bottom.className='kafedra-bottom_inv';                        
                        enter_kaf_img.src = '/bitrix/templates/msu/images/kafedra-button.gif';
                        enter_kaf.className='green_area_inv';    
                }
                else
                {                		
                		enter_r.className = 'right_inv';
                        enter_img.src = '/bitrix/templates/msu/images/authorize.gif';
                        enter.className='auth_area_inv';                                             
                }
        }
}


function ShowSearch()
{ 					
        var enter=document.getElementById('search');        
        var enter_r=document.getElementById('r_search');        
        var enter_img=document.getElementById('search-button');        
        if(enter)
        {		                		
                if(enter.className=='auth_area_inv')
                {
                		enter_r.className = 'right2';
                        enter.className='auth_area search';                                                
                        enter_img.src = '/bitrix/templates/msu/images/authorize_active.gif';
                        var enter=document.getElementById('auth');        
        				var enter_r=document.getElementById('r_auth');        
        				var enter_img=document.getElementById('auth-button');                              
                        enter_r.className = 'right_inv';
                        enter_img.src = '/bitrix/templates/msu/images/authorize.gif';
                        enter.className='auth_area_inv';                        
						var enter_kaf=document.getElementById('kafedra');
        				var enter_kaf_bottom=document.getElementById('kafedra-bottom');
        				var enter_kaf_img=document.getElementById('kafedra-button');                          
                        enter_kaf_bottom.className='kafedra-bottom_inv';                        
                        enter_kaf_img.src = '/bitrix/templates/msu/images/kafedra-button.gif';
                        enter_kaf.className='green_area_inv';                            
                }
                else
                {                		
                		enter_r.className = 'right2_inv';
                        enter_img.src = '/bitrix/templates/msu/images/search_icon.gif';
                        enter.className='auth_area_inv';                        
                }
        }
}


function showTime()
  {
    var CurTime=new Date();
    var h=CurTime.getHours();
    var m=CurTime.getMinutes();
    var s=CurTime.getSeconds();
    var STime=""+h;
    STime+=((m<10)? ":0" : ":") + m;     
    
    document.getElementById('Time').innerHTML=STime;
    timerId=setTimeout("showTime()",1000);
	}
	
function first_tab()
{
        document.getElementById('tab-1').className='main-active';
        document.getElementById('tab-2').className='main';
        document.getElementById('main_news').style.display='block';
        document.getElementById('hidden_news').style.display='none';
        document.getElementById('im1').src = '/bitrix/templates/msu/images/main_blue-left.gif';
        document.getElementById('im2').src = '/bitrix/templates/msu/images/main_blue-right.gif';
        document.getElementById('im3').src = '/bitrix/templates/msu/images/main_gray-left.gif';
        document.getElementById('im4').src = '/bitrix/templates/msu/images/main_gray-right.gif';
        document.getElementById('all_news').innerHTML = '<a href="./news/">Все новости</a>';
        document.getElementById('all_news').className = 'news-bottom';
}

function second_tab()
{
        document.getElementById('tab-2').className='main-active';
        document.getElementById('tab-1').className='main';
        document.getElementById('hidden_news').style.display='block';
        document.getElementById('main_news').style.display='none';
		document.getElementById('im3').src = '/bitrix/templates/msu/images/main_blue-left.gif';
        document.getElementById('im4').src = '/bitrix/templates/msu/images/main_blue-right.gif';
        document.getElementById('im1').src = '/bitrix/templates/msu/images/main_gray-left.gif';
        document.getElementById('im2').src = '/bitrix/templates/msu/images/main_gray-right.gif';        
        document.getElementById('all_news').innerHTML = '<a href="./oby/">Все объявления</a>';        
        document.getElementById('all_news').className = 'oby-bottom';
}