function fHl(o, flag, rndColor, url) {
	var bgCor = fgCor = "";
	if (rndColor) {
		bgCor = fRndCor(10, 20);
		fgCor = fRndCor(230, 255);
	} else {
		bgCor = "";
		fgCor = "red";
	}
	var re = new RegExp(flag, "i");
	for (var i = 0; i < o.childNodes.length; i++) {
		var o_ = o.childNodes[i];
		var o_p = o_.parentNode;
		if (o_.nodeType == 1) {
			fHl(o_, flag, rndColor, url);
		} else {
			if (o_.nodeType == 3) {
				if (!(o_p.nodeName == "A")) {
					if (o_.data.search(re) == -1) {
						continue;
					}
					var temp = fEleA(o_.data, flag);
					o_p.replaceChild(temp, o_);
				}
			}
		}
	} 
        
   	//------------------------------------------------ 
	function fEleA(text, flag) {
		var style = " style=\"background-color:" + bgCor + ";color:" + fgCor + ";\" ";
		var o = document.createElement("span");
		var str = "";
		var re = new RegExp("(" + flag + ")", "gi");
		if (url) {
			str = text.replace(re, "<a href=\"" + url + "\"" + style + ">$1</a>");
		} else {
			str = text.replace(re, "<span " + style + ">$1</span>");
		}
		o.innerHTML = str;
		return o;
	}
        
    //------------------------------------------------ 
	function fRndCor(under, over) {
		if (arguments.length == 1) {
			var over = under;
			under = 0;
		} else {
			if (arguments.length == 0) {
				var under = 0;
				var over = 255;
			}
		}
		var r = fRandomBy(under, over).toString(16);
		r = padNum(r, r, 2);
		var g = fRandomBy(under, over).toString(16);
		g = padNum(g, g, 2);
		var b = fRandomBy(under, over).toString(16);
		b = padNum(b, b, 2); 
            //defaultStatus=r+' '+g+' '+b 
		return "#" + r + g + b;
		
		function fRandomBy(under, over) {
			switch (arguments.length) {
			  case 1:
				return parseInt(Math.random() * under + 1);
			  case 2:
				return parseInt(Math.random() * (over - under + 1) + under);
			  default:
				return 0;
			}
		}
		
		function padNum(str, num, len) {
			var temp = "";
			for (var i = 0; i < len; temp += num, i++) {
			}
			return temp = (temp += str).substr(temp.length - len);
		}
	}
}

function fH2(o, flag, rndColor, url) {
	var keyArray = flag.split(" ");
	for (i = 0; i < keyArray.length; i++) {
		fHl(o, keyArray[i]);
	}
}