The method of realizing the highlight effect of JS body content _javascript Skill

Copy Code code as follows:

Highlight Search Keywords
function Heightlight (Keyword)
{
Text Selector
var TextRange;
Whether to find
var Found=false;
Number of times found
var Count = 0;
TextRange = Document.body.createTextRange ();
Found = Textrange.findtext (Keyword);
if (Found)
{
count++;
}
while (Found && Count > 0)
{
Textrange.pastehtml (' <span style= ' background:yellow ' > ' + Keyword + ' </span> ');
Position the scroll bar to the viewport range for the first time
if (count==1)
{
Textrange.scrollintoview ();
}
Continue to find
Found = Textrange.findtext (Keyword);
if (! Found)
{
Count = 0;
}
Else
{
count++;
}
}
}
The regular Formula method
Function Highlight (Ele,keys)
{
var reg = new RegExp ("(" + keys.replace (/,/, "|") + ")", "G");
ele.innerhtml = Ele.innerHTML.replace (Reg, "<font color=\" red\ ">$1</font>");
}