function feedbackValidate(form1)
{		
				
	if(form1.name.value=='') 
	{
			alert("Enter your Name");
			form1.name.focus();
			return false;
	}
	if(form1.phone.value=='') 
	{
			alert("Enter your Phone number");
			form1.name.focus();
			return false;
	}
	if(isNaN(document.form1.phone.value))
{
alert("ENTER VALID PHONE NO!!!");
document.form1.phone.focus();
return false;
}
	var remail=/^[a-zA-Z0-9_\.\-]+@[a-zA-Z0-9\-]+\.[a-zA-Z0-9\-\.]+$/;   // Regular expression to check email format
			
			if(!remail.test(document.form1.email.value))
				{
				alert("ENTER VALID E-MAIL ADDRESS!!!");
				document.form1.email.focus();
				return false;
				}	

	if(form1.feedback.value=='') 
	{
			alert("Please write your Feedback");
			form1.feedback.focus();
			return false;
	}
		
}