/* Function that disables the primary screen stylesheet and enables the alternate screen stylesheet. */

function changeStyles() {
  var style_dec;
  for (i=0; (style_dec = document.getElementsByTagName("link")[i]); i++) {
    if (style_dec.getAttribute("rel").indexOf("style") != -1 && style_dec.getAttribute("title")) {
	  style_dec.disabled = true;
	  if (style_dec.getAttribute("title") == 'print_preview')
	    style_dec.disabled = false;
    }
  }
}

/* Function that opens the send page window. */

function sendPage() {
  window.open('http://www.barnardos.org.uk/send_page.htm?url=' + document.URL, 'winName', 'height=750, width=550, scrollbars=yes, toolbar=no, status=no, resizable=yes');
}

/* Function that opens the print preview window. */

function printPage() {
  window.open(window.location.href + "?style=print", 'winName', 'height=425, width=650, scrollbars=yes, toolbar=yes, menubar=yes, status=yes, resizable=yes');
}

<!-- survey cookie setting -->
<!--
var allcookies = document.cookie;
var pos = allcookies.indexOf("surveyNum=");
var expdate = "Fri, 21 Dec 2007 17:00:00 UTC";
	if (pos != -1) {
  	var start = pos + 10;
  	var end = allcookies.indexOf(";", start);
		if (end == -1) end = allcookies.length;
  			var value = allcookies.substring(start, end);
  			value = unescape(value);
  			value++;
 			document.cookie = "surveyNum=" + value + "; expires="+expdate+"; path=/; domain=barnardos.org.uk;";
  			if (value == 4) window.open("http://www.barnardos.org.uk/site_feedback_survey", "Popup", "width=640px,height=500px,status=yes,resizable=yes,scrollbars");  
	}else {
		document.cookie = "surveyNum=0; expires="+expdate+"; path=/; domain=barnardos.org.uk;";
}
-->