// Highlight Words Script
// copyright Stephen Chapman, 17th January 2007
// you may copy this script provided that you retain the copyright notice

var kw = [];
var qsParm = []; 

function qs() 
{
    var query = window.location.search.substring(1); 
    var parms = query.split('&'); 
    
    for (var i=0; i < parms.length; i++) 
    {
        var pos = parms[i].indexOf('='); 
        if (pos > 0) 
        {
            var key = parms[i].substring(0, pos); 
            var val = parms[i].substring(pos + 1); 
            qsParm[key] = val;
        }
    }
} 

qsParm['hilite'] = null; 
qs();
if (qsParm['hilite'] != null) 
{
    kw = qsParm['hilite'].split(',');
}

function start() 
{
    //var bdy = document.getElementsByTagName('body')[0].innerHTML; 
    var bdy = document.getElementById('column1')

    if (bdy) {
        bdy = document.getElementById('column1').innerHTML;

        for (var i = kw.length - 1; i >= 0; i--) {
            var re = new RegExp('(\\b' + kw[i] + '\\b)', 'ig');
            bdy = bdy.replace(re, '<span class="hl">$1<\/span>');
            var re1 = new RegExp('(<[^>]*?)<span class="hl">(' + kw[i] + ')<\/span>(.*?>)', 'ig');
            bdy = bdy.replace(re1, '$1$2$3');
            var re2 = new RegExp('(<script.*?>)<span class="hl">(' + kw[i] + ')<\/span>(<\/script>)', 'ig');
            bdy = bdy.replace(re2, '$1$2$3');
            var re3 = new RegExp('(<textarea.*?>)<span class="hl">(' + kw[i] + ')<\/span>(<\/textarea>)', 'ig');
            bdy = bdy.replace(re3, '$1$2$3');
        }

        //document.getElementsByTagName('body')[0].innerHTML = bdy;
        document.getElementById('column1').innerHTML = bdy;
    }
}

window.onload = start;