function chksign_up() 
{
if (document.getElementById("TextBox1").value=="") 
      {
		alert("Please enter your Title");
		document.getElementById("TextBox1").focus();
		return false;
	} 
	else if (document.getElementById("txt_name").value=="") 
      {
		alert("Please enter your First Name");
		document.getElementById("txt_name").focus();
		return false;
	} 
	else if (document.getElementById("txt_lastname").value=="") 
      {
		alert("Please enter your Last Name");
		document.getElementById("txt_lastname").focus();
		return false;
	} 
	else if (document.getElementById("txt_address").value=="") 
      {
		alert("Please enter your Street no");
		document.getElementById("txt_address").focus();
		return false;
	} 
	else if (document.getElementById("txt_streetname").value=="") 
      {
		alert("Please enter your street name");
		document.getElementById("txt_lastname").focus();
		return false;
	} 
	else if (document.getElementById("txt_streetname").value=="") 
      {
		alert("Please enter your Last Name");
		document.getElementById("txt_lastname").focus();
		return false;
	} 
	else if (document.getElementById("txt_streetsuffix").value=="") 
    {
		alert("Please enter your street suffix.");
		document.getElementById("txt_streetsuffix").focus();
		return false;
	}  
	else if (document.getElementById("txt_suburb").value=="") 
    {
		alert("Please enter your suburb");
		document.getElementById("txt_suburb").focus();
		return false;
	}  	
	else if (document.getElementById("txt_state").value=="") 
    {
		alert("Please enter your state");
		document.getElementById("txt_state").focus();
		return false;
	}  
	else if (document.getElementById("txtPostcode").value=="") 
    {
		alert("Please enter your Post Code");
		document.getElementById("txtPostcode").focus();
		return false;
	}  
	else if(isNaN(document.getElementById("txtPostcode").value))
    {
	    alert("postal code must be numeric");
	    document.getElementById("txtPostcode").focus();
	    return false;
	} 
	else if (document.getElementById("txt_telephone").value=="") 
    {
		alert("Please enter your telephone no");
		document.getElementById("txt_telephone").focus();
		return false;
	}  
	else if(isNaN(document.getElementById("txt_telephone").value))
	{
	    alert("Telephone no  must be numeric");
	    document.getElementById("txt_telephone").focus();
	    return false;
	} 
	else if (document.getElementById("txt_email").value=="") 
    {
		alert("Please enter email id");
		document.getElementById("txt_email").focus();
		return false;
	}  
	 var emailPat = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
     var emailid=document.getElementById("txt_email").value;
     var matchArray = emailid.match(emailPat);
     if (matchArray == null)
    {
               alert("Your email address seems incorrect. Please try again.");
               document.getElementById("txt_email").focus();
               return false;

     }
     
     else if(document.getElementById("chkTerms").checked==false)
     {
        alert("Plese accept the terms and conditions");
        document.getElementById("chkTerms").focus();
        return false;
     }
  
	
	
//	else if (document.getElementById("txt_0_3").value=="" && document.getElementById("txt_4_7").value=="" && document.getElementById("txt_morethn7").value=="") 
//      {
//		alert("Please enter your no of childrens");
//		document.getElementById("txt_0_3").focus();
//		return false;
//	}  
	
	
 
//	else if (document.getElementById("txt_ques").value=="") 
//      {
//		alert("Please enter your answer");
//		document.getElementById("txt_ques").focus();
//		return false;
//	}*/
 
	
}