function check()
{
 var frm;
 frm = document.query;
	if(query.txtname.value == "")
	{
		alert("Enter Your Name please");
		query.txtname.focus() ;
		return false;
	}
	if(query.txtcompany.value == "")
	{
		alert("Enter Company Name");
		query.txtcompany.focus();
		return false;
	}
	if(query.txtmail.value == "")
	{
		alert("Enter your correct email address");
		query.txtmail.focus();
		return false;
	}
	if(query.txtphone.value == "")
	{
		alert("Enter your Contact Number");
		query.txtphone.focus();
		return false;
	}
	if(query.txturl.value == "")
	{
		alert("Enter your company website address");
		query.txturl.focus();
		return false;
	}
	if(query.txtquery.value == "")
	{
		alert("Your Comments Please");
		query.txtquery.focus();
		return false;
	}
	 str1=query.txtmail.value;
	 if (str1 != "")
	 {
		s= str1.lastIndexOf("@");
			if (s == -1 )
			{
				alert("Invalid E-mail ID!");
				query.txtmail.focus();
				return false;
			}
			s1= str1.lastIndexOf(".");
			if (s1 == -1 )
			{
				alert("Invalid E-mail Address !");
				query.txtmail.focus();
				return false;
			}
	}
	return true;
}