function TogglePreview(showit) {
	if (showit) {
		document.getElementById('ad_show').style.display = '';
	}
	return true;
} 


function CreateInsertion(date) {
	if (document.forms['AdOnline'].poss_editions.value != "") {
		// adpublish_id|publication_id|timestamp(pubdate)|killrun
		var pub_id = document.forms['AdOnline'].poss_editions.options[document.forms['AdOnline'].poss_editions.selectedIndex].value;
		var HiddenValue = "0|" + pub_id + "|" + date + "|" + "0"; //
		for (var i = 0; i<document.forms['AdOnline'].elements.length; i++) {
			if (document.forms['AdOnline'].elements[i].value == HiddenValue) {
				return false;
			}
		}
		var Lastfield = "<input type='hidden' name='adpublish_id[]' value='"+ HiddenValue + "'>";
		var displayDate = dateFormat(new Date(date*1000) , "!dd/!mm/!yy")
		var EditionTitle = document.forms['AdOnline'].poss_editions.options[document.forms['AdOnline'].poss_editions.selectedIndex].text;
		addRowDOM('publish_table',displayDate,EditionTitle,Lastfield);
		document.getElementById('submitbutton').style.visibility = 'visible';
	} else {
		alert("There is no edition selected");
		return false;
	}
}