//行の色を変更
window.onload = function () {
    var elmTRs = document.getElementsByTagName('tr');
	var oddColor;
	var evenColor;
	var elm;
	var tgtElm;
	for (i = 0; i < elmTRs.length; i++) {
		tgtElm = false;
		elm = elmTRs[i];
		
		if ( elm.getAttribute('class') == 'odd' || elm.getAttribute('className') == 'odd' ) {
			oddColor = elm.style.backgroundColor;
			tgtElm = true;
		} else if ( elm.getAttribute('class') == 'even' || elm.getAttribute('className') == 'even' ) {
			evenColor = elm.style.backgroundColor;
			tgtElm = true;
		}
		
		if (tgtElm) {
			elm.onmouseover = function() {m_over(this)};
			elm.onmouseout = function() {m_out(this)};
		}
		
	} 
	function m_over(obj) {
		obj.style.backgroundColor = '#84cfe6';
	}
	
	function m_out(obj) {
		if ( obj.getAttribute('class') == 'odd' || obj.getAttribute('className') == 'odd' ) {
			obj.style.backgroundColor = oddColor;
		} else {
			obj.style.backgroundColor = evenColor;
		}
	}
}