var currencies = {
    "EUR": ["€", "EUR", "EURO", "EUROS"],
    "USD": ["$", "USD", "USDOLLAR", "USDOLLARS"],
    "DEM": ["DM", "Deutsche Mark"]
};
var rates = {
    "EUR": { USD: 1.2613 },
    "USD": { EUR: 0.792832792 },
    "DEM": { DEM: 2.466888379 }
};  	
Knotenliste=document.selectNodes('//div');
for (var Zaehler=Knotenliste.length-1; Zaehler>=0; Zaehler--) 
{
	var inhalt = Knotenliste[Zaehler].innerHTML;      
	inhalt = replaceCurrencies(inhalt, "DEM");  
	if(inhalt.indexOf("€") != -1)
	{
		alert("Still there");
	}      
	Knotenliste[Zaehler].innerHTML = inhalt;
}

  
function replaceCurrencies(text, targetCurrency, currencyFormatIndex, currencySeparator) {
    var regex = /(\d+)\s*(€|EURO?S?)/gi;
    return text.replace(regex, function(m, number, currency) {
        var c, i;
        for (c in currencies) {
            if (currencies.hasOwnProperty(c)) {
                for (i = 0; i < currencies[c].length; i++) {
                    if (currencies[c][i] === currency) {
                        return [Math.round(rates[c][targetCurrency] * number, 2), currencies[targetCurrency][currencyFormatIndex || 0]].join(currencySeparator || "");
                    }
                }
            }
        }
        return m;
    });
}