/* window name
----------------------------------------- */
window.name="lifeonmain";
window.focus();

/* safari search field
----------------------------------------- */
var isSafari = ((parseInt(navigator.productSub)>=20020000) && (navigator.vendor.indexOf("Apple Computer")!=-1));
function safariSearchField() {
	if (!document.getElementById) return;
	var theSearchField = document.getElementById('searchField');
	var theSearchFieldTop = document.getElementById('searchFieldTop');
	if (isSafari) {
		theSearchField.setAttribute('type', 'search');
		theSearchField.setAttribute('results', '5');
		//theSearchField.setAttribute('placeholder', '');
	}
}
window.onload = safariSearchField;

/* random images
----------------------------------------- */
function randomImage() {
	num = Math.random()*3;
	num = Math.floor(num)+1;
	document.write('<img src="./image/top_visual'+num+'.jpg" border="0" alt="lifeOnは、日々のくらしに役立つ知識やアイデアを提供する生活情報サイトです。" />');
	}