function setInputHelper(objid, helptext) {
    var element = document.getElementById(objid);
    element.value = helptext;
    element.onfocus = function() {
        if (element.value == helptext)
            element.value = "";
    }
    element.onblur = function() {
        if (element.value.length == 0)
            element.value = helptext;
    }
}

function isEmptyField(fieldname, emptytext, helptext) {
	var field = document.getElementById(fieldname);
	if (field) {
		var fieldValue = field.value.replace(/(^\s+)|(\s+$)/g, "");
		if (fieldValue=='' || fieldValue==helptext) {
			alert(emptytext);
			field.focus();
			return false;
		}
	} else
		return false;
}