function preloader() {
    if(document.images)
    {
      var image_array = new Array();
      var path = '/img/';
      image_array[0] = path + "icandothat_nav_02_on.gif";
      image_array[1] = path + "icandothat_nav_03_on.gif";
      image_array[2] = path + "icandothat_nav_04_on.gif";
      image_array[3] = path + "icandothat_nav_05_on.gif";
      image_array[4] = path + "icandothat_nav_06_on.gif";
      image_array[5] = path + "icandothat_nav_02.gif";
      image_array[6] = path + "icandothat_nav_03.gif";
      image_array[7] = path + "icandothat_nav_04.gif";
      image_array[8] = path + "icandothat_nav_05.gif";
	  image_array[9] = path + "icandothat_nav_06.gif";
      var preload_image = new Array ();
      for(var i=0; i<image_array.length; i++) {
        preload_image[i]= new Image();
        preload_image[i].src = image_array[i];
      }
    }
}
function roll_over(img_name,img_src) {
	document[img_name].src=img_src;
}
function roll_out(img_name,img_src) {
	document[img_name].src=img_src;
}
function popUp(url, w, h, id, scr) {
 	var wl = (screen.width - w) / 2;
  	var wt = (screen.height - h) / 2;
	eval(id + " = window.open(url, '" + id + "', 'toolbar=0,scrollbars=" + scr + ",location=0,statusbar=0,menubar=0,resizable=0,width=" + w + ",height=" + h + ",left = " + wl + ",top = " + wt + "');");
}
function showhide(newpage, id, num) {
	if(!document.getElementById) return;
	for (var i=1;i<=num;i++) {
		document.getElementById(id+i).style.display="none";
		document.getElementById(newpage).style.display="block";
	}
}