JQuery+JS实现仿百度搜索结果中关键字变色效果

1.源码

<script type="text/javascript"> 
$(function() { 
$("#btn_1").click(function() { 
var $keyword = $("#Text1").val() 
setHeightKeyWord('bbb', $keyword, 'Red', true) 
}); 
}); 
function setHeightKeyWord(id, keyword, color, bold) { 
if (keyword == "") 
return; 
var tempHTML = $("#" + id).html(); 
var htmlReg = new RegExp("\<.*?\>", "i"); 
var arrA = new Array(); 
for (var i = 0; true; i++) { 
var m = htmlReg.exec(tempHTML); 
if (m) { 
arrA[i] = m; 
} 
else { 
break; 
} 
tempHTML = tempHTML.replace(m, "[[[[" + i + "]]]]"); 
} 
var replaceText 
if (bold) 
replaceText = "<b style='color:" + color + ";'>$1</b>"; 
else 
replaceText = "<font style='color:" + color + ";'>$1</font>"; 
var arrayWord = keyword.split(','); 
for (var w = 0; w < arrayWord.length; w++) { 
var r = new RegExp("(" + arrayWord[w].replace(/[(){}.+*?^$|\\\[\]]/g, "\\$&") + ")", "ig"); 
tempHTML = tempHTML.replace(r, replaceText); 
} 
for (var i = 0; i < arrA.length; i++) { 
tempHTML = tempHTML.replace("[[[[" + i + "]]]]", arrA[i]); 
} 
$("#" + id).html(tempHTML); 
} 
</script>