function checkIfBlackberry(value){
	if(value.toLowerCase()=='blackberry'){
		document.getElementById("not_blackberry").style.display="none";
		document.getElementById("is_blackberry").style.display="block";
	}
	else{
		document.getElementById("is_blackberry").style.display="none";
		document.getElementById("not_blackberry").style.display="block";
	}
}

function checkIMEI(imei){
	//alert(imei.value.toString());
	str_imei = imei.value.toString();
	if(str_imei.charAt(6)=='0' && str_imei.charAt(7)=='3'){
		//show another option
		document.getElementById("operator1").value = "";
		document.getElementById("operator1").style.display="none";
		document.getElementById("operator2").style.display="inline";
	}
	else{
		//show default option
		document.getElementById("operator2").value = "";
		document.getElementById("operator2").style.display="none";
		document.getElementById("operator1").style.display="inline";
	}
}