function LYNum1Show(){ // Default Open Whats New
	LoadFlg = 'Y';
	if(location.href.indexOf('?num=',0) > -1){
		var GetMenuNum = location.href.split('?num=')[1].slice(0,1);
		ShowCase(GetMenuNum,LyImgNum[GetMenuNum])
	}else{
		ShowCase('1',LyImgNum[1])
	}
}
var LoadFlg = 'N'
var ImgFlg;
var StockFlg     = 'noData';
var StockImgAddr = 'noData';
var ShowSecondFlg = false;
function ShowCase(Flg,ImgAddr){ // Layer + Image Change
	if(LoadFlg == 'N'){return;}
	LoadFlg == 'N';
	ImgFlg = Flg;
	
	document.images['Img' + Flg].src = ImgAddr + '_ov.gif';
	
	if((StockImgAddr != 'noData') && (StockImgAddr != ImgAddr)){ // Layer + Img Of
		document.images['Img' + StockFlg].src = StockImgAddr + '_of.gif';
		
		/* Layer Hidden */
		if(ShowSecondFlg == false){
			if((document.getElementById) && (!document.all)){document.getElementById('LWhat' + StockFlg).style.visibility = 'hidden';
			}else if(document.all){document.all('LWhat' + StockFlg).style.visibility = 'hidden';
			}else if(document.layers){document.layers['LWhat' + StockFlg].visibility = 'hidden';}
		}else {
			if((document.getElementById) && (!document.all)){document.getElementById('LWhat' + StockSecond).style.visibility = 'hidden';
			}else if(document.all){document.all('LWhat' + StockSecond).style.visibility = 'hidden';
			}else if(document.layers){document.layers['LWhat' + StockSecond].visibility = 'hidden';}
			ShowSecondFlg = false;
		}
	}
	StockFlg = Flg;
	StockImgAddr = ImgAddr;
	
	/* Layer Visible */
	if((document.getElementById) && (!document.all)){document.getElementById('LWhat' + Flg).style.visibility = 'visible';
	}else if(document.all){document.all('LWhat' + Flg).style.visibility = 'visible';
	}else if(document.layers){document.layers['LWhat' + Flg].visibility = 'visible';}
	
	LoadFlg == 'Y';
}
var StockSecond = 'N';
function ShowSecond(Flg){ // The contents which are 2 by 1 layer. Layer Change
	if(ShowSecondFlg == false){ // Layer + Img Of
		/* Layer Hidden */
		if((document.getElementById) && (!document.all)){document.getElementById('LWhat' + StockFlg).style.visibility = 'hidden';
		}else if(document.all){document.all('LWhat' + StockFlg).style.visibility = 'hidden';
		}else if(document.layers){document.layers['LWhat' + StockFlg].visibility = 'hidden';}
	}else {
		if((document.getElementById) && (!document.all)){document.getElementById('LWhat' + StockSecond).style.visibility = 'hidden';
		}else if(document.all){document.all('LWhat' + StockSecond).style.visibility = 'hidden';
		}else if(document.layers){document.layers['LWhat' + StockSecond].visibility = 'hidden';}
	}
	StockSecond = Flg;
	ShowSecondFlg = true;
	/* Layer Visible */
	if((document.getElementById) && (!document.all)){document.getElementById('LWhat' + Flg).style.visibility = 'visible';
	}else if(document.all){document.all('LWhat' + Flg).style.visibility = 'visible';
	}else if(document.layers){document.layers['LWhat' + Flg].visibility = 'visible';}
	
}
function ImgChg(ImgNum,ImgAddr,Flg){ // Image Change
	if(ImgFlg != ImgNum){
		document.images['Img' + ImgNum].src = ImgAddr + '_' + Flg + '.gif';
	}
}