function checkAll(myform, field) {
	for (i = 0; i < myform.elements.length; i++) {
		if (myform.elements[i].name == field) {
			myform.elements[i].checked = myform.checkall.checked;
		}
	}
}
function doAction(myform, myaction) {
	myform.action = myaction;
	myform.submit();
}
function doSelect(myform, field) {
	if ("" != myform.filter.value) {
		for (i = 0; i < myform.elements.length; i++) {
			if (myform.elements[i].name == field) {
				myform.elements[i].checked = parseInt(myform.filter.value);
			}
		}
	}
}
function popup(url) {
    window.open(url, '', 'location=1, status=0, resizable=1, scrollbars=1, menubar=1, toolbar=1, height=600, width=634');
}
function popupEmail(url) {
    window.open(url, '', 'location=0, status=0, resizable=1, scrollbars=1, menubar=0, toolbar=0, height=550, width=650');
}
function previewImage(myinput, width) {
	if (myinput.value) {
		document.images['preview'].src = myinput.value;
		document.images['preview'].width = width;
	}
}
function setUrl(a, url) {
    a.href = url;
	return true;
}