var isIE = (navigator.appName.indexOf("Microsoft") != -1) ? 1 : 0;

function checkLength(ele) {
	ele.value = (ele.value.length > 300 ? ele.value.substring(0,300) : ele.value);
}

function focusOn(id) {
	if (document.getElementById(id)) {
		document.getElementById(id).focus();
	}
}