var _Common_ = {
	initRollovers:function(){
		if (!document.getElementById) return
		var aPreLoad = new Array();
		var sTempSrc;
		var aImages = document.getElementsByTagName('img');
		var img_Len = aImages.length;
		for (var i = 0; i < img_Len; i++) {		
			if (aImages[i].className == 'over') {
				var src = aImages[i].getAttribute('src');
				var ftype = src.substring(src.lastIndexOf('.'), src.length);
				var hsrc = src.replace(ftype, '_over'+ftype);
	
				aImages[i].setAttribute('hsrc', hsrc);
				aPreLoad[i] = new Image();
				aPreLoad[i].src = hsrc;
				aImages[i].onmouseover = function() {
					sTempSrc = this.getAttribute('src');
					this.setAttribute('src', this.getAttribute('hsrc'));
				}	
				aImages[i].onmouseout = function() {
					if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_x'+ftype, ftype);
					this.setAttribute('src', sTempSrc);
				}
			}
		} 
		
		var aInputs = document.getElementsByTagName('input');
		var img_Len = aInputs.length;
		for (var i = 0; i < img_Len; i++) {		
			if (aInputs[i].className == 'over') {
				var src = aInputs[i].getAttribute('src');
				var ftype = src.substring(src.lastIndexOf('.'), src.length);
				var hsrc = src.replace(ftype, '_over'+ftype);
	
				aInputs[i].setAttribute('hsrc', hsrc);
				aPreLoad[i] = new Image();
				aPreLoad[i].src = hsrc;
				aInputs[i].onmouseover = function() {
					sTempSrc = this.getAttribute('src');
					this.setAttribute('src', this.getAttribute('hsrc'));
				}	
				aInputs[i].onmouseout = function() {
					if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_x'+ftype, ftype);
					this.setAttribute('src', sTempSrc);
				}
			}
		}   
		return;
	},
	rand:function(x){
		number = Math.floor(Math.random() * x);
		return number;
	},
	url_Parse:function(url){
		var _ = false;
		if(url.indexOf("?") > 0 && url.indexOf("=") > 0){
			_ = new Array();
			var array = url.split("#");
			array = array[0].split("?");
			array = array[1].split("&");
			for(var i=0;i<array.length;i++){
				array[i] = array[i].split("=");
				var hash = array[i][0];
				var value = array[i][1];
				
				_[hash] = value;
			}
			delete array;
		}
		return _;
	},

	addLoadEvent:function(func){
		var oldonload = window.onload;
		if (typeof window.onload != 'function') {
			window.onload = func;
		}
		else {
			window.onload = function() {
				func();
				oldonload();
			}
		}
	}
}
var Cookie = { //cookie
	read:function(CookieName){
		if(document.cookie){
			var cookie_Data = document.cookie;
			var Name =cookie_Data.indexOf(CookieName + "=",0);
			if(Name >= 0){
				var Data = cookie_Data.indexOf(";",Name + CookieName.length + 1);
				Data >= 0? Data = cookie_Data.substring(Name + CookieName.length + 1,Data): Data = cookie_Data.substring(Name + CookieName.length + 1,cookie_Data.length);
				return(Data);
			}
		}
		return(false);
	},
	set:function(CookieName,Value){
		var time =new Date();
		time.setTime(time.getTime() + (1000*365*60*60*24));
		var exptime =";expires=" + time.toGMTString();
		document.cookie = CookieName + "=" + Value + exptime + "; path=/";
	},
	Delete:function(CookieName){
		var time =new Date();
		time.setTime(time.getTime() - (1000*365*60*60*24));
		var exptime =";expires=" + time.toGMTString();
		document.cookie = CookieName + "=" + exptime + "; path=/";
	}
}
var index ={};
index.baseURL = "img/index/";
index.data = ["main_img_1.jpg","main_img_design.jpg","main_img_2.jpg","main_img_3.jpg","main_img_ecology.jpg","main_img_4.jpg","main_img_5.jpg","main_img_natutral.jpg","main_img_6.jpg"];
index.init = function(){
	if(this.num < 0){
		this.num = _Common_.rand(this.data.length);
	}else{
		if(this.num >= this.data.length-1){
		
			this.num = 0;
		}else{
			this.num ++;
		}
		
		
	}
	$("h1 img").eq(0).animate({opacity:0},200,function(){
	
		$(this).attr("src",index.baseURL + index.data[index.num]).animate({opacity:1},1000,function(){
			setTimeout(function(){
				index.init();
				},5000);
		});

						     
	});
	
};
index.num = -1;


$(document).ready(function(){
	_Common_.initRollovers();
	if($(".indexMain").length > 0){
		
		for(var i=0;i<index.data.length;i++){
			$("h1").css({overflow:"hidden",width:"600px",height:"300px"}).append("<img src='" + index.baseURL + index.data[i] + "' />");
		}
		index.init();
	}


});