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 check() {  
	var d = document.enquiry;  
	
 	if(d.pname.value == "" || d.pname.value == " ") {
		alert ("Please enter your Name!");
		d.pname.focus()
		d.pname.select()
		return false;
	}
	 
	if(d.address.value == "" || d.address.value == " ") {
		alert ("Please enter your address!");
		d.address.focus()
		d.address.select()
		return false;
	}
	if(d.contact.value.length<8){
		alert("Please enter the valid phone number");
		d.contact.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.subject.value == "" || d.subject.value == " ") {
		alert ("Please enter subject!");
		d.subject.focus()
		d.subject.select()
		return false;
	}	
	
	if(d.comments.value == "" || d.comments.value == " ") {
		alert ("Please enter comments!");
		d.comments.focus()
		d.comments.select()
		return false;
	}
	return true;
}