js 正則表達式 ，除去字符串中 font-family:xxxx 這樣的字符傳

function removeFontFamily(contnet){
	//remove repeat
	var unique = function(arr) {
	    var result = [], hash = {};
	    for (var i = 0, elem; (elem = arr[i]) != null; i++) {
	        if (!hash[elem]) {
	            result.push(elem);
	            hash[elem] = true;
	        }
	    }
	    return result;
	}
	//
	var arr = contnet.match(/(font-family:[^><;"]*(;)?)/ig);
	arr = unique(arr);
	for(var i=0;i<arr.length;i++){ 
		console.log(arr[i]);
		var reg = new RegExp(arr[i], "ig");
		contnet = contnet.replace(reg,"");
	}
	return contnet;
}

//