//////////////////////////////////////////////////////////////////////////////////////////
//                             		КРУТИЛКА АКЦИЙ
//////////////////////////////////////////////////////////////////////////////////////////

var	opacity_step		=	10;
var	change_time			=	1000;
var auto_time_out		=	4000;
var time_out			=	change_time / (100 / opacity_step);
var	current_action		=	1;
var	number_actions		=	0;
var	is_changing			=	false;
var	is_mouse_over		=	false;
var auto_timeout_id		=	0;
var additional_div		=	1;	// количесвто дополнительный дивов в диве Main_Actions


function ActionsBanInit(main_div_id){
	if(document.getElementById(main_div_id)){
		var main_el = document.getElementById(main_div_id);
		div_els = main_el.getElementsByTagName("div");
		var num_actions = div_els.length;
	
		if((num_actions - additional_div) > 1){
			document.getElementById("Main_Top_Banners").onmouseover	=function(){is_mouse_over	=	true;	clearTimeout(auto_timeout_id);}
			document.getElementById("Main_Top_Banners").onmouseout	=function(){is_mouse_over	=	false;	auto_timeout_id = setTimeout("ActionsBanAutoRotate()",auto_time_out);}
		
			for(var i = 0; i < num_actions; i++){
				var clas = getAttr(div_els[i],"class");
				//alert("clas="+clas+"  i="+i);
				if(clas == 'ActionImg Loading'){
					div_els[i].style.visibility	=	"hidden";
				}
				if(clas == 'ActionImg'){
					number_actions++;
					div_els[i].setAttribute("id","ActionImg_"+number_actions);
					//div_els[i].style.zIndex = (number_action * 10);
					//alert("number_actions="+number_actions);
					if(number_actions > 1){
						div_els[i].style.visibility	=	"hidden";
						div_els[i].style.filter		=	"alpha(opacity=0)";
						div_els[i].style.opacity	=	"0.0";
					}else{
						div_els[i].style.visibility	=	"visible";
						div_els[i].style.filter		=	"alpha(opacity=100)";
						div_els[i].style.opacity	=	"1.0";
						
						// убираем затемение на превьюшке
						ActionsBanHideOpacity(document.getElementById("ActionSmallImg_"+number_actions));
					}
					
					var preview_el			= document.getElementById("ActionSmallImg_"+number_actions);
					preview_el.onmouseover	=function(){ActionsBanHideOpacity(this);};
					preview_el.onmouseout	=function(){ActionsBanShowOpacity(this);};
					preview_el.onclick		=function(){ActionsBanSelectBig(this);};
				}
			}
			auto_timeout_id = setTimeout("ActionsBanAutoRotate()",auto_time_out);
		}
		if((num_actions - additional_div) == 1){
			for(var i = 0; i < num_actions; i++){
				var clas = getAttr(div_els[i],"class");
				if(clas.indexOf('Button')>=0){
					div_els[i].style.visibility	=	"hidden";
				}
				if(clas == 'ActionImg Loading'){
					div_els[i].style.visibility	=	"hidden";
				}
				if(clas == 'ActionImg'){
					number_actions++;
					div_els[i].style.visibility	=	"visible";
					ActionsBanHideOpacity(document.getElementById("ActionSmallImg_"+number_actions));
				}
			}
		}
	}
}

function ActionsBanAutoRotate(){
	//alert(is_mouse_over);
	if(!is_mouse_over){
		if((current_action+1)>number_actions){new_action=1;}else{new_action=current_action+1;}
		ActionsBanChange(new_action);
		auto_timeout_id = setTimeout("ActionsBanAutoRotate()",auto_time_out);
	}
}

function ActionsBanPrev(){
	if(!is_changing){
		if((current_action-1)==0){new_action=number_actions;}else{new_action=current_action-1;}
		ActionsBanChange(new_action);
	}
}

function ActionsBanNext(){
	if(!is_changing){
		if((current_action+1)>number_actions){new_action=1;}else{new_action=current_action+1;}
		ActionsBanChange(new_action);
	}
}

function ActionsBanChange(n){
	is_changing = true;
	ActionsBanSetOpacity(current_action,1,100);
	ActionsBanSetOpacity(n,2,0);
	
	current_action = n;
}

function ActionsBanSetOpacity(id,direction,opacity){
	//alert("id="+id+"direction="+direction+"opacity="+opacity)
	var el = document.getElementById('ActionImg_'+id);
	if(direction == 1){
		opacity = opacity - opacity_step;

		if(browser_name == 'IE'){
			el.style.filter="alpha(opacity= " + opacity + ")";
		}else{
			el.style.opacity="0." + opacity;
		}

		if(opacity == 0){
			el.style.visibility	=	"hidden";
			is_changing = false;

			// включаем затемение на превьюшке
			s_el = document.getElementById("ActionSmallImg_"+id);
			ActionsBanShowOpacity(s_el);
		}else{
			setTimeout("ActionsBanSetOpacity("+id+",1,"+opacity+")",time_out);
		}
	}
	if(direction == 2){
		if(opacity == 0){
			el.style.visibility	=	"visible";
		}

		opacity = opacity + opacity_step;

		if(browser_name == 'IE'){
			el.style.filter="alpha(opacity= " + opacity + ")";
		}else{
			if(opacity < 100){el.style.opacity="0." + opacity;}else{el.style.opacity="1.0";}
		}
	
		if(opacity < 100){
			setTimeout("ActionsBanSetOpacity("+id+",2,"+opacity+")",time_out);
		}else{
			is_changing = false;
			
			// убираем затемение на превьюшке
			s_el = document.getElementById("ActionSmallImg_"+id);
			ActionsBanHideOpacity(s_el);
		}
		
	}
}


function ActionsBanHideOpacity(s_el){
	var op_div = s_el.getElementsByTagName("div");
	op_div[0].style.display = "none";
}

function ActionsBanShowOpacity(s_el){
	var id = getAttr(s_el,"id").substring(15);
	if(current_action!=id){
		var op_div = s_el.getElementsByTagName("div");
		op_div[0].style.display = "block";
	}
}

function ActionsBanSelectBig(s_el){
	if(!is_changing){
		var id = getAttr(s_el,"id").substring(15);
		//alert(id);
		new_action=id;
		ActionsBanChange(new_action);
	}
}



//////////////////////////////////////////////////////////////////////////////////////////
//                             		КРУТИЛКА АКЦИЙ
//////////////////////////////////////////////////////////////////////////////////////////