rollingbg = function(parent, imgArr){
	this.parentDiv = document.getElementById(parent);
	this.imgArr = imgArr;

	rollingbg.prototype.changbg = function(){
		this.viewBg = 0;
		this.viewBg = Math.floor(Math.random() * this.imgArr.length);
		this.bgImg = this.parentDiv.getElementsByTagName("img");
		this.bgImg[0].src = this.imgArr[this.viewBg];
		this.parentDiv.style.display = "block";
	}
}

rollingbg2 = function(parent, imgArr , altArr){
	this.parentDiv = document.getElementById(parent);
	this.imgArr = imgArr;
	this.altArr = altArr;

	rollingbg2.prototype.changbg = function(){
		this.viewBg = 0;
		this.viewBg = Math.floor(Math.random() * this.imgArr.length);
		this.bgImg = this.parentDiv.getElementsByTagName("img");
		this.bgImg[0].src = this.imgArr[this.viewBg];
		
		this.parentDiv.style.display = "block";
		this.bgImg[0].alt = this.bgImg[0].alt +" "+ this.altArr[this.viewBg];
	}
}


/* 팝업존 */
var popup_timer = null;
var popup_delay_time = 4000;
var popup_pause = false;
var popup_button_pause = false;
var select_popup_num = 1;
  
function popup_display(popupIDX, move, strid) {
	if(!popupIDX)  {
  		popupIDX = select_popup_num;
  		if(popup_pause==true && !move) return;
  		if(popup_button_pause==true && !move) return;
  		if(!move) move = 'next';
  		hide_popup(strid, popupIDX);
  	}else{
  		hide_popup(select_popup_num);
  	}
  	if(move=='prev') {
  		if(popupIDX==1) {
  			popupIDX = popup_object_num;
  		} else {
  			popupIDX--;
  		}
  	} else if(move=='next') {
  		if(popupIDX==popup_object_num) {
  			popupIDX = 1;
  		} else {
  			popupIDX++;
  		}
  	} else if(move=='pause') {
  		if(popup_button_pause==true) {
  			popup_button_pause=false;	
  			document.getElementById("popup_pause_img").src='images/main/popupzone_btn_stop.gif';
  			document.getElementById("popup_pause_img").alt='팝업존 자동 정지';
  		} else if(popup_button_pause==false) {
  			popup_button_pause=true;	
  			document.getElementById("popup_pause_img").src='images/main/popupzone_btn_play.gif';
  			document.getElementById("popup_pause_img").alt='팝업존 자동 재생';
  		}
  	}
  	show_popup(strid, popupIDX);
  	select_popup_num = popupIDX;
}
  
function hide_popup(strid, num) {
  	document.getElementById(strid + num).style.display = 'none';
}
  
function show_popup(strid, num) {
  	document.getElementById(strid + num).style.display = 'block';
}

function popup_scroll(strid) {
  	popup_timer = setInterval("popup_display('','','"+strid+"')",popup_delay_time); 
}


var popup_timer2 = null;
var popup_delay_time2 = 4000;
var popup_pause2 = false;
var popup_button_pause2 = false;
var select_popup_num2 = 1;
  
function popup_display2(popupIDX, move, strid) {
	if(!popupIDX)  {
  		popupIDX = select_popup_num2;
  		if(popup_pause2==true && !move) return;
  		if(popup_button_pause2==true && !move) return;
  		if(!move) move = 'next';
  		hide_popup2(strid, popupIDX);
  	}else{
  		hide_popup2(select_popup_num2);
  	}
  	if(move=='prev') {
  		if(popupIDX==1) {
  			popupIDX = focus_object_num;
  		} else {
  			popupIDX--;
  		}
  	} else if(move=='next') {
  		if(popupIDX==focus_object_num) {
  			popupIDX = 1;
  		} else {
  			popupIDX++;
  		}
  	} else if(move=='pause') {
  		if(popup_button_pause2==true) {
  			popup_button_pause2=false;	
  			document.getElementById("focus_pause_img").src='images/main/btn_stop.gif';
  			document.getElementById("focus_pause_img").alt='포커스 자동 정지';
  		} else if(popup_button_pause2==false) {
  			popup_button_pause2=true;	
  			document.getElementById("focus_pause_img").src='images/main/btn_play.gif';
  			document.getElementById("focus_pause_img").alt='포커스 자동 재생';
  		}
  	}
  	show_popup2(strid, popupIDX);
  	select_popup_num2 = popupIDX;
}
  
function hide_popup2(strid, num) {
  	document.getElementById(strid + num).style.display = 'none';
}
  
function show_popup2(strid, num) {
  	document.getElementById(strid + num).style.display = 'block';
}

function popup_scroll2(strid) {
  	popup_timer2 = setInterval("popup_display2('','','"+strid+"')",popup_delay_time2); 
}



var popup_timer3 = null;
var popup_delay_time3 = 4000;
var popup_pause3 = false;
var popup_button_pause3 = false;
var select_popup_num3 = 1;
  
function popup_display3(popupIDX, move, strid) {
	if(!popupIDX)  {
  		popupIDX = select_popup_num3;
  		if(popup_pause3==true && !move) return;
  		if(popup_button_pause3==true && !move) return;
  		if(!move) move = 'next';
  		hide_popup3(strid, popupIDX);
  	}else{
  		hide_popup3(select_popup_num3);
  	}
  	if(move=='prev') {
  		if(popupIDX==1) {
  			popupIDX = publicity_object_num;
  		} else {
  			popupIDX--;
  		}
  	} else if(move=='next') {
  		if(popupIDX==publicity_object_num) {
  			popupIDX = 1;
  		} else {
  			popupIDX++;
  		}
  	} else if(move=='pause') {
  		if(popup_button_pause3==true) {
  			popup_button_pause3=false;	
  			document.getElementById("publicity_pause_img").src='images/main/btn_stop.gif';
  			document.getElementById("publicity_pause_img").alt=' 홍보자료 슬라이드 정지';
  		} else if(popup_button_pause3==false) {
  			popup_button_pause3=true;	
  			document.getElementById("publicity_pause_img").src='images/main/btn_play.gif';
  			document.getElementById("publicity_pause_img").alt='홍보자료 슬라이드 자동 재생';
  		}
  	}
  	show_popup3(strid, popupIDX);
  	select_popup_num3 = popupIDX;
}
  
function hide_popup3(strid, num) {
  	document.getElementById(strid + num).style.display = 'none';
}
  
function show_popup3(strid, num) {
  	document.getElementById(strid + num).style.display = 'block';
}

function popup_scroll3(strid) {
  	popup_timer3 = setInterval("popup_display3('','','"+strid+"')",popup_delay_time3); 
}