//グローバルナビ画像プリロードクリプト& IE Flick対策------------------------------------------------
function preload(imgs){
 for(var i = 0; i < imgs.length; i++){
   var imgObj = new Image();
   imgObj.src = "/shared/images/"+imgs[i];
 }
}
preload(["gnavi1_on.gif","gnavi2_on.gif", "gnavi3_on.gif", "gnavi4_on.gif", "gnavi5_on.gif", "gnavi6_on.gif"]);
try {
  document.execCommand('BackgroundImageCache', false, true);
} catch(e) {}


//ロールオーバースクリプト------------------------------------------------
function smartRollover() {
	if(document.getElementsByTagName) {
		var images = document.getElementsByTagName("img");

		for(var i=0; i < images.length; i++) {
			if(images[i].getAttribute("src").match("_off."))
			{
				images[i].onmouseover = function() {
					document.body.style.cursor='pointer';
					this.setAttribute("src", this.getAttribute("src").replace("_off.", "_on."));
				}
				images[i].onmouseout = function() {
					document.body.style.cursor='default';
					this.setAttribute("src", this.getAttribute("src").replace("_on.", "_off."));
				}	
			}
		}
	}
}

if(window.addEventListener) {
	window.addEventListener("load", smartRollover, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload", smartRollover);
}


//プルダウン------------------------------------------------
//function pullDownOn(targetId){
//	document.getElementById(targetId).style.visibility="visible";
//}
//function pullDownOff(targetId){
//	document.getElementById(targetId).style.visibility="hidden";
//}

//IE用リンク点線消去
window.onload=function(){
	a=document.getElementsByTagName("a");
	for(i=0;i<a.length;i++){
		a[i].onfocus=function(){this.blur();}
	}
	area=document.getElementsByTagName("area");
	for(i=0;i<area.length;i++){
		area[i].onfocus=function(){this.blur();}
	}
}

//プルダウンアニメーション(jQuery Plugin)
$(function() {
	$('#nav').droppy();
});

//Flashオーバーレイ操作(jQuery)
$(function() {
	$('#channelBtn').hover(flashOn,noAction);
	$('#channelFlash').hover(flashOn,noAction);
});

function flashOn() {
	$('#channelFlash').css('visibility','visible');
}

function flashOff() {
	$('#channelFlash').css('visibility','hidden');
}

function noAction() {
}