function InitAltRow() {
  var tables = document.getElementsByTagName("table");  

  for(var x=0;x!=tables.length;x++){
    var table = tables[x];
    if (! table) { return; }
    
	if(table.className.toLowerCase().indexOf("liste")>-1) {
		var tbodies = table.getElementsByTagName("tbody");
	    
		for (var h = 0; h < tbodies.length; h++) {
		var even = true;
		var trs = tbodies[h].getElementsByTagName("tr");
	      
		for (var i = 0; i < trs.length; i++) {       
			if(even)
			trs[i].className += " even-row";
	        
			even = !even;
		}
		}
	}
  }
}

InitAltRow();