function validate_email(field,alerttxt)
{
	with (field)
	{
		apos=value.indexOf("@");
		dotpos=value.lastIndexOf(".");
		if (apos<1||dotpos-apos<2) 
		  {alert(alerttxt);return false;}
		else{
			return true;
		}
	}
}

function validate_form(thisform)
{
	with (thisform)
	{
		if(name.value == "Name" || name.value == ""){
			name.value = "";
			alert("Please enter your name");name.focus();return false;
		}

		if (validate_email(email,"Not a valid e-mail address!")==false){
			email.value = "";
			email.focus();return false;
		}

		if(company.value == "Company Name" || company.value == ""){
			company.value = "";
			alert("Please enter your company name");company.focus();return false;
		}

		if(website.value == "Website" || website.value == ""){
			website.value = "";
			alert("Please enter your website");website.focus();return false;
		}

		if(message.value == "type your message here" || message.value == ""){
			message.value = "";
			alert("Please type your message");message.focus();return false;
		}

		if(scode.value == "3+10+12 = ?" || scode.value == "" || scode.value != 25){
			scode.value = "";
			alert("Invalid Security Code");scode.focus();return false;
		}
	}
}