function getElementsByClassName(class_name)
{
  var all_obj,ret_obj=new Array(),j=0,teststr;

  if(document.all)all_obj=document.all;
  else if(document.getElementsByTagName && !document.all)
    all_obj=document.getElementsByTagName("*");

  for(i=0;i<all_obj.length;i++)
  {
    if(all_obj[i].className.indexOf(class_name)!=-1)
    {
      teststr=","+all_obj[i].className.split(" ").join(",")+",";
      if(teststr.indexOf(","+class_name+",")!=-1)
      {
        ret_obj[j]=all_obj[i];
        j++;
      }
    }
  }
  return ret_obj;
}


function switchtablerows(class_name){
	
	var allTables = getElementsByClassName(class_name);

	for(var i=0; i < allTables.length; i++){
		allTables[i] = allTables[i].getElementsByTagName("tr"); 
	}
	
	for(var i=0; i < allTables.length; i++){
		
		for(var j=0; j < allTables[i].length; j++){
			if(j%2){
				
				allTables[i][j].className = "row1";
			}else{
				
				allTables[i][j].className = "row2";
			}
			
		}
	}
		
}