function ShowOrHide(d1, d2) {
	  if (d1 != '') DoDiv(d1);
	  if (d2 != '') DoDiv(d2);
	}
	function DoDiv(id) {
	  var item = null;
	  if (document.getElementById) {
		item = document.getElementById(id);
	  } else if (document.all){
		item = document.all[id];
	  } else if (document.layers){
		item = document.layers[id];
	  }
	  if (!item) {
	  }
	  else if (item.style) {
		if (item.style.display == "none"){ item.style.display = ""; }
		else {item.style.display = "none"; }
	  }else{ item.visibility = "show"; }
 	}
var style1 = "white";
var style2= "gray";
var divnumber= 1;
function divstyle() {
	var currentstyle;
	if (divnumber % 2 == 0) {
	currentstyle = style1;
	} else {
	currentstyle = style2;
	}
	document.write("<div class=\"" + currentstyle + "\">");
	divnumber = divnumber + 1;
	}