// ロールオーバー
function initRollovers() {
	if (!document.getElementById) return
	
	var aPreLoad = new Array();
	var sTempSrc;
	var aImages = document.getElementsByTagName('img');

	for (var i = 0; i < aImages.length; i++) {		
		if (aImages[i].className == 'imgover') {
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_o'+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('_o'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
}

window.onload = initRollovers;

//ie6対策　入力部分　フォーカスカラー
function focusColor(i){
i.style.borderColor='#770000';
i.style.backgroundColor='#ffffff';
}
function blurColor(i){
i.style.borderColor='#cccccc';
i.style.backgroundColor='#f3f3f3';
}
function backspace(){
	window.document.onkeydown = Function('if(event.keyCode == 0008) return true;');
}
function nobackspace(){
	window.document.onkeydown = Function('if(event.keyCode == 0008) return false;');
}
//
//画像submitボタン置き換え
function gosubmit(form){
	document.contactform.submit();
}



//アクセス解析
 function futomi(){
	 document.write("<img src='http://www.centralh.co.jp/cgi-bin/acc/acclog.cgi?");
	 document.write("referrer="+document.referrer+"&");
	 document.write("width="+screen.width+"&");
	 document.write("height="+screen.height+"&");
	 document.write("color="+screen.colorDepth+"'>");
 }