function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp('(^|\\s)'+searchClass+'(\\s|$)');
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}

function checkforbrand() {

	var bosch = getElementsByClass('bosch');
	var neff = getElementsByClass('neff');
	var siemens = getElementsByClass('siemens');
	var gaggenau = getElementsByClass('gaggenau');
	var tagname = document.getElementsByTagName('a');

		if (bosch.length > 0) 
			{
			for (var loop = 0; loop < tagname.length; loop++)
				{
					tagname[loop].className = "bosch";
				}
			}
		else if (neff.length > 0)
			{
			for (var loop = 0; loop < tagname.length; loop++)
				{
					tagname[loop].className = "neff";
				}
			}
		else if (siemens.length > 0) 
			{
			for (var loop = 0; loop < tagname.length; loop++)
				{
					tagname[loop].className = "siemens";
				}
			}
		else if (gaggenau.length > 0) 
			{
			for (var loop = 0; loop < tagname.length; loop++)
				{
					tagname[loop].className = "gaggenau";
				}
			}
}