// Java Document
function validateForm(form){
	// check first name
	if (form.txtName.value == "") {
		alert( "Please enter your Name." );
		form.txtName.focus();
		return false ;
	}
 
	// check Email
	if (form.txtEmail.value == "") {
		alert( "Please enter your Email." );
		form.txtEmail.focus();
		return false ;
	}
 
	// check phonne field
	if (form.txtPhone.value == "") {
		alert( "Please enter your Phone Number." );
		form.txtPhone.focus();
		return false ;
	}

	// check message field
	if (form.txtMessage.value == "") {
		alert( "Your Message is empty. Please write something." );
		form.txtMessage.focus();
		return false ;
	}

 	// check for valid email add
	var apos=form.txtEmail.value.indexOf("@");
	var dotpos=form.txtEmail.value.lastIndexOf(".");
 	if (apos<1||dotpos-apos<2){
		alert("Not A Valid Email Address!");
		return false;
	}


 	// check for valid Phone no
    var incomingString=form.txtPhone.value;
	if(trimSpace(incomingString).length == 0 || incomingString.search(/[^0-9\-()+]/g) != -1  ){
		alert("Please enter valid phone number");
		return false;
	}

 // END
 	return true ;
}