function isNumberKey(evt)
{
 var charCode = (evt.which) ? evt.which : event.keyCode
 if (charCode > 31 && (charCode < 48 || charCode > 57)) {
     alert("Please enter valid contact number");
    return false;
 }
}

function test() {

var d = document.testimonials;  
	
 	if(d.name.value == "" || d.name.value == " ") {
		alert ("Please enter your Name!");
		d.name.focus()
		return false;
	}
	if(d.designation.value == "" || d.designation.value == " ") {
		alert ("Please enter the Designation!");
		d.designation.focus()
		return false;
	}
	if(d.contactNo.value.length<8){
		alert("Please enter the valid phone number");
		d.contactNo.focus();
		return false;
	} 
	if(d.email.value == "" || d.email.value == " ") {
		alert ("Please enter a valid E-mail addresd.\n" +"Example: name@gmail.com");
		d.email.focus()
		d.email.select()
		return false;
	} else if(d.email.value.indexOf("@")<1 ||
    	d.email.value.indexOf(".")==-1 ||
    	d.email.value.indexOf(",")!=-1 ||
    	d.email.value.indexOf(" ")!=-1 ||
    	d.email.value.length<6)
  {
    alert("Please enter a valid E-mail addresd.\n" +
    "Example: name@gmail.com");
     d.email.focus();
     return false;
  }
	if(d.city.value == "" || d.city.value == " ") {
		alert ("Please enter the City!");
		d.city.focus()
		return false;
	}
	if(d.testimonial.value == "" || d.testimonial.value == " ") {
		alert ("Please enter the Testimonial!");
		d.testimonial.focus()
		return false;
	}
	return true;
}