// JavaScript Document
function Validate_form()
{
     if(document.getElementById("form1").txtfirstname.value=="")
      {
          alert("Please enter your first name before submitting.");
          document.getElementById("form1").txtfirstname.focus();
          return false;
      }
	if(document.getElementById("form1").txtsurname.value=="")
    {
        alert("Please enter your surname before submitting.");
        document.getElementById("form1").txtsurname.focus();
        return false;
    }
        
     if(document.getElementById("form1").txtcompany.value=="")
     {
         alert("Please enter your company name before submitting.");
         document.getElementById("form1").txtcompany.focus();
         return false;
    }
	 if(document.getElementById("form1").txtemail.value=="")
    {
        alert("Please enter your email before submitting.");
        document.getElementById("form1").txtemail.focus();
        return false;
    }
	if(isEmail(document.getElementById("txtemail").value)==false)
		{
			alert("Please enter a valid email address.");
			document.getElementById("txtemail").focus();
			return false;
		}
    if(document.getElementById("form1").txttelephone.value=="")
    {
         alert("Please enter your telephone number before submitting.");
         document.getElementById("form1").txttelephone.focus();
         return false;
    }
	if(!document.form1.chkterms.checked)
	{
		alert("Please accept the terms & conditions before submitting.");
        return false;
    }

	
	
}
function isEmail(string) 
	{
		if (string.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1)
			return true;
		else
			return false;
	}// JavaScript Document