var timer_logo = 0;
var	activ_nOpacity = 0;
var	user_agent = "";


function get_el(id){
	return document.getElementById(id);
}

function set_opacity(id, opacity){
	if(user_agent.indexOf("ie") != -1 ){
		get_el(id).style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity=" + (opacity * 100) + ")";
	}else{
		get_el(id).style.opacity = opacity;
	}
}

function get_set_user_agent(){
	user_agent_ = navigator.userAgent.toLowerCase();
	if(user_agent_.indexOf("opera") != -1){
		document.body.className = "opera";
		user_agent = "opera";
	}else
	if(user_agent_.indexOf("gecko") != -1){
		document.body.className = "gecko";
		user_agent = "gecko";
	}else
	if(user_agent_.indexOf("msie") != -1){
		document.body.className += "ie";
		user_agent = "ie";
		if(user_agent_.indexOf("msie 6") != -1){
			document.body.className += " ie6";
		}else
		if(user_agent_.indexOf("msie 7") != -1){
			document.body.className += " ie7";
		}
	}
}


function show_hide_logo(flag){
	clearTimeout(timer_logo);
	if(flag){
		activ_nOpacity -= 0.02;
		set_opacity('logo_viocom_activ', activ_nOpacity);
		if(activ_nOpacity > 0 ){
			timer_logo = setTimeout("show_hide_logo(1);", 10);
		}
	}else{
		activ_nOpacity += 0.02;
		set_opacity('logo_viocom_activ', activ_nOpacity);
		if(activ_nOpacity < 1 ){
			timer_logo = setTimeout("show_hide_logo(0);", 10);
		}
	}
}


//  Инициализация  //begin
function init(){
	get_set_user_agent();
	
	get_el("avt").onmouseout = function(){show_hide_logo(1);};
	get_el("avt").onmouseover = function(){show_hide_logo(0);};

}
//  Инициализация  //end