function DeleteForestyle() {
	if (!document.styleSheets) return;

	for (var i=0; i<document.styleSheets.length; i++) {
		var rules =
			document.styleSheets[i].rules ||  //IE
			document.styleSheets[i].cssRules; //Mozilla
		for (var j=0; j<rules.length; j++) {
			// ãOŸ~”šŒ‚ //
			/*
			rules[j].style['color']      = "";
			rules[j].style['fontStyle']  = "";
			rules[j].style['fontWeight'] = "";
			*/
			
			// �¸–§ŽËŒ‚ //
			if (rules[j].selectorText=="*" || rules[j].selectorText=="") {
				rules[j].style['fontStyle']  = "";
				rules[j].style['fontWeight'] = "";
			}
			if (rules[j].selectorText.match(/^strong$/i)) {
				rules[j].style['color'] = "";
			}
			if (rules[j].selectorText.match(/^em$/i)) {
				rules[j].style['color'] = "";
			}
			if (rules[j].selectorText.match(/^u$/i)) {
				rules[j].style['color'] = "";
			}
			if (rules[j].selectorText.match(/^strike$/i)) {
				rules[j].style['color'] = "";
			}
		}
	}
} DeleteForestyle();