var defaultVal = 'Enter your email address';
	function qrp(formField) {
	    var email = formField.value;

		if(email != defaultVal && isValidEmail(email)) {
		}
		else {
		    if(email != defaultVal) {
			   formField.value = defaultVal;
			   formField.style.color = "red";
			   alert('Please enter a valid email address!');
			}
		}
	}
	
	function isValidEmail(str) {
        return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
    }

	function qrpf(formField) {
		if(formField.value == defaultVal) {
			formField.style.color = "#333";
			formField.value = "";
		}
	}
	
	function qrpb(formField) {
		if(formField.value == "") {
			formField.style.color = "#999";
			formField.value = defaultVal;
		}
	}