var d = new Date();
	var epoch_time =(d.getTime()-d.getMilliseconds())/1000;
	var randomnumber=Math.floor(Math.random()*9999);
	var randomnumber1=Math.floor(Math.random()*9999);
	var ran_num=randomnumber+"."+epoch_time+"."+randomnumber1;
	var url="/cgi/get_captcha.cgi?cref="+ran_num+"&style=2";
function set()
{
	if (document.dataform.B_name.value.length == 0)  {
		alert ("Kindly enter the books name.");
		document.dataform.B_name.focus();
		return false;
	}

	if (document.dataform.S_name.value.length == 0)  {
		alert ("Kindly enter Your name.");
		document.dataform.S_name.focus();
		return false;
	}

	if (!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/.test(document.dataform.S_email.value))) {
		alert("Invalid Email ID. Kindly enter the correct ID.");
		document.dataform.S_email.focus();
		return (false);
	}

	if (document.dataform.captcha_text.value.length == 0)  
	{
		alert ("Kindly enter the code as appearing in the Image.");
		document.dataform.captcha_text.focus();
		return false;
	}
	return true;
}