// JavaScript Document
// alternate row classes
function alternate(id){
	if(document.getElementsByTagName){  
		var table = document.getElementById(id);  
		var rows = table.getElementsByTagName("tr");  
			for(var i = 0; i < rows.length; i++){          
			//manipulate rows
	   			if(i % 2 == 0){
    				rows[i].className = "even";
     			}else{
       				rows[i].className = "odd";
     			}      
			}
	}
}