function zebraStriper(targetClass)	{
	var tables = document.getElementsByTagName('table');
	for(i=0;i<tables.length;i++){
	var rows = tables[i].getElementsByTagName('tr');
	var shade = false;
		for(j=0;j<rows.length;j++){
			if (shade==true){rows[j].className="shaded";shade=false;}else{shade=true;}
		}
	}
}