I need to adapt an old XSLT file that transforms an XML file into HTML/JS. It doesn’t work anymore.

Here is the original JS code generated in XSLT file :

function processVisibility(item, visible) {
    var childs = item.childNodes;
    for (var i = 0; i < childs.length; i++) {
        if ( (childs.item(i).className == "ArchiveObject") 
            || (childs.item(i).className == "Document")
            || (childs.item(i).className == "Attachment") ) {
            if (visible) {
                childs.item(i).style.display = "block";
            } else {
                childs.item(i).style.display = "none";
            }
        }   
    }
}

The string “&lt ;” is not transformed into < in the output HTML. As a result, JS code doesn’t work in modern browsers.

If I replace “&lt ;” with < in the XSLT file, I get an error and that’s normal. So I tried creating a variable:

<xsl:variable name="chevron"><</xsl:variable>

et

function processVisibility(item, visible) {
    var childs = item.childNodes;
    for (var i = 0; i <xsl:value-of select="$chevron" disable-output-escaping="yes"/> childs.length; i++) {
        if ( (childs.item(i).className == "ArchiveObject") 
            || (childs.item(i).className == "Document")
            || (childs.item(i).className == "Attachment") ) {
            if (visible) {
                childs.item(i).style.display = "block";
            } else {
                childs.item(i).style.display = "none";
            }
        }   
    }
}

But the HTML output does not contain < but “&lt ;”
How can I get < to be generated in HTML using XSLT?

Thank you in advance