Evaluates surounding tags of a text

[ionutmunteanu]

I need a script that evaluates the tags that suround a text :
<p><font color="black">text before link<a href="#">link</a>text after link</font></p>
Concrete: I need to know if "link" text is suround only by tags or it has other texts nea him , like "text before link" or "text after link".
Is there any script made for this or has somebody a goof ideea about how to manipulate the text to find out where tags are present there?


thanks,
ionut

[Vladdy]

DOM Way:

<p id="p1">
text before link
<a href="#">link</a>
text after linl
</p>


p = document.getElementById('p1');
if (p.firstChild.nodeName != 'a')
{ //there is something before the link
}

if (p.lastChild.nodeName !='a')
{ //there is something after the link
}

[jkd]

You can also make use of previousSibling/nextSibling:

var testLink = document.getElementById('p1').getElementsByTagName('a').item(0);

if (testLink.previousSibling) {
// node before it - could be an empty text node though if indented and in Gecko
// previousSibling && previousSibling.nodeType != Node.TEXT_NODE
//would take care of that issue
}

if (testLink.nextSibling) {
// node after it, same issues as before
}