function white_space(s)
{
     var v;
	 v = s.replace(/^\s*|\s*$/g,'');
	 return v;
}
function request_validate()
{

	var exprOne = /^[A-Za-z]+[ ]*[A-Za-z]+$/;

	var expTwo = /^[0-9]+$/;

	var expThree = /^[ ]+/;

	var exprFour = /^[A-Za-z]+$/;

	var filter=/^[a-zA-Z][\w\_\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]$/;



	var Name,Email,Comment,code;

	

	Name=document.getElementById("name");	

	Email=document.getElementById("email");
	
	Comment=document.getElementById("comment");

	code=document.getElementById("code");

	

	if(Name.value == "") {

	alert("Please Enter Your Name!");

	Name.focus();

	return(false); 

	}

	if(white_space(Name.value) == ''){
		alert("Spaces are not allowed.");
		Name.focus();
		Name.select();
		return false;
	}

	if(Email.value == "" || Email.value == null ) {

		alert("Please Enter E-Mail Address!");

		Email.focus();

		return(false);

	}

	if(white_space(Email.value) == ''){
		alert("Spaces are not allowed.");
		Email.focus();
		Email.select();
		return false;
	}

	if(!(filter.test(Email.value)))

	{

		alert("Please Enter Valid E-Mail!");

		Email.focus();

		Email.select();

		return(false);

	}	

	if(Comment.value == "") {

	alert("Please Enter Your Comments!");

	Comment.focus();

	return(false); 

	}
	
	if(white_space(Comment.value) == ''){
		alert("Spaces are not allowed.");
		Comment.focus();
		Comment.select();
		return false;
	}
	
		if(code.value == "") {

		alert("Please Enter Verification Code!");

		code.focus();

		return(false); 

	}	

	return true;	

}