function userLoginWithBackRedirect()
    {
        document.data_form.operation.value = 'user_login_with_back_redirect';
        document.data_form.submit();
    } 	
    
	function singIn()
	{
		document.data_form.operation.value = 'sing_in';
		document.data_form.submit();
	}

	function singOut()
	{
		document.data_form.operation.value = 'sing_out';
		document.data_form.submit();
	}	
	
   	function showHelp(lay)
	{
		document.getElementById([lay]).style.display = 'block';
	}

	function hideHelp(lay)
	{
		document.getElementById([lay]).style.display = 'none';
	}

	

    
	
	function addItem(operation)
	{
		document.data_form.operation.value = operation;
		document.data_form.submit();
	}
	
	function updateCategoriesAndGroups(operation)
	{
		document.data_form.operation.value = operation;
		document.data_form.submit();		
	}

	
	function switchSort(sort_mode)
	{
		document.data_form.sort_mode.value = sort_mode;
        document.data_form.operation.value = 'sort_items';
        document.data_form.submit();		
	}	
	
	function adminLogout()
	{		
		document.data_form.operation.value = 'admin_logout';
		document.data_form.submit();
	}		
	

    function addBid()
    {
        document.data_form.operation.value = 'add_bid';
        document.data_form.submit();
    }
    	
    
    
    function deleteBid(bid_id)
    {
        document.data_form.operation.value = 'delete_bid';
        document.data_form.bid_id.value = bid_id;
        document.data_form.submit();
    }    
    

    function deletePV(pv_id)
    {
        document.data_form.operation.value = 'delete_pv';
        document.data_form.pv_id.value = pv_id;
        document.data_form.submit();
    }       
    

    function addExecutor(bid_id)
    {
    	document.data_form.bid_id.value = bid_id;
        document.data_form.operation.value = 'add_executor';
        document.data_form.submit();
    }    
    
    
    function deleteExecutor(bid_id)
    {
    	document.data_form.bid_id.value = bid_id;
        document.data_form.operation.value = 'delete_executor';
        document.data_form.submit();
    }            
    
    function setCheckBoxValue(obj)
    {
    	if (obj.value == 0)
    		obj.value = 1;
    	else
    		obj.value = 0;    		
    }    
    
    function loadCitiesList(country_id, city_id, is_disabled)
    {
    	if (is_disabled)
    	{
    		document.data_form.city_id.disabled = true;
    	}
    	
		$.post('/cities/load', { country_id: country_id, city_id: city_id }, function(result){
		$("#cities_select").html(result);
		});    	
    }
    
    function checkRadioItem(cur_obj, radio_id)
    {
    	if (document.getElementById(radio_id).value != cur_obj.value)
    	{
	    	old_radio_id = radio_id+'_'+document.getElementById(radio_id).value;
	    	document.getElementById(old_radio_id).checked = false;
	    	document.getElementById(radio_id).value = cur_obj.value;
    	}
    }
    
    function openTalkWindow(url, user_id)
    {
    	open(url, 'talk_'+user_id, 'width=600,height=600,status=no,toolbar=no,menubar=no,scrollbars=no');
    }
    
	function changeColor(next_color, obj_id)
	{
		var text_colors= new Array("#737373", "#f90");
		
		document.getElementById(obj_id).style.color=text_colors[next_color];
		next_color++;
		
		if(next_color>text_colors.length-1)
		{
			next_color=0;
		}
		
		window.setTimeout("changeColor("+next_color+", '"+obj_id+"')", 600);
	}    
	
	function userServicesRedirect()
	{
        document.data_form.operation.value = 'services_redirect';
        document.data_form.submit();		
	}

	function userResumeRedirect()
	{
        document.data_form.operation.value = 'resume_redirect';
        document.data_form.submit();		
	}	
	
	function userPortfolioRedirect()
	{
        document.data_form.operation.value = 'portfolio_redirect';
        document.data_form.submit();		
	}	
	
	function userAdRedirect()
	{
        document.data_form.operation.value = 'ad_redirect';
        document.data_form.submit();		
	}