function Quicksearch_OnSubmit(o){
	if ( o.quicksearch.value.length == 0 ){
		alert("Please enter part of a street name or postcode");
		o.quicksearch.focus();
		return false;
	}
}

HttpManager.Document.Forms.HtmlInputText.Value("frmQuickSearch","quicksearch", HttpManager.Request.QueryString("quicksearch") );