//validate_survivourForm

function validate_survivourForm(f){
	if(f.sfirstname.value == ""){
		alert('Please Provide First name.');
		f.sfirstname.focus();
		return false;
	}
	else if(f.slastname.value == ""){
		alert("Please Provide Last name.");
		f.slastname.focus();
		return false;
	}
	else if(f.txtNumber.value == ""){
		alert("Please Provide Image Verification Code.");
		f.txtNumber.focus();
		return false;
	}
	else{
		return true;
	}
}