var scIE=((navigator.appName == "Microsoft Internet Explorer") || ((navigator.appName == "Netscape") && (parseInt(navigator.appVersion)==5)));
var scNN=((navigator.appName == "Netscape")&&(document.layers));

var mandatoryFields = new Array;
var mandatoryFieldsDescr = new Array;
function addMandatoryField(fieldName, fieldDescr, mand) {
    if (mand==0) return;
	mandatoryFields[mandatoryFields.length]=fieldName;
	mandatoryFieldsDescr[mandatoryFieldsDescr.length]=fieldDescr;
}

function submitFeedBack() {
	for ( i=0; i<mandatoryFields.length; i++ ) {
		inp = 'document.forms[0].'+mandatoryFields[i];
		inp1=eval(inp);
		if (inp1.value.length==0) {
	        alert("Field "+mandatoryFieldsDescr[i]+' cannot be empty')
	        inp1.focus();
			return false;

		}
	}
	return true;
}

function popimg (u, title) {
	var i = window.open('about:blank', 'img','toolbar=no,resizable=yes,scrollbars=yes');
	i.document.open();
	i.document.write("<table align=center cellpadding=30 style='border:1px solid #c3d3fd'>");
	i.document.write("<tr><td align=center>");
	i.document.write("<img src='" + u + "'>");
	i.document.write("</td></tr></table><br>");
	i.document.write("<center><font style='font-size:90%' color='#000066' family=arial>" + title + "</font></center>");
	i.document.close();
	i.focus();

}

function popup (id) {
	var i = window.open(id, 'popup','toolbars=0,resizable=1,status=1,scrollbars=0,width=500,height=320');
	i.focus();
}	
function popupBig (id) {
	var i = window.open(id, 'popupBig','toolbars=0,resizable=1,status=1,scrollbars=0,width=500,height=340');
	i.focus();
}	

function em(t , i) {
	var s = t.substring(0,i);
	var e = t.substring(i) + '.co.uk';
	document.write('<a href="mail' + 'to:' + s + '@' + e + '">' + s + '@' + e + '</a>');
}