function pageHeight() {
	var content = document.getElementById('content');
	var sidebar = document.getElementById('sidebar');
	var container = document.getElementById('container');
	
	if (sidebar.offsetHeight < container.offsetHeight - 282) {
		sidebar.style.height = (container.offsetHeight - 282) + "px";
	} else {
		container.style.height = (sidebar.offsetHeight + 273) + "px";
	}
}

function clearField(field, valueString, passField) {
	var fieldItem = document.getElementById(field);
	
	if(fieldItem.value == valueString) {
		fieldItem.value = "";
		fieldItem.style.color = "#fff";
	}
	if(passField == "password") {
		fieldItem.type = "password";
	}
}