//document.onkeydown = checkKeycode

function checkKeycode(e,fromWhere) 
{
var keycode;
if (window.event) 
	keycode = window.event.keyCode;
else if (e) 
	keycode = e.which;

	if(keycode == 13)
	{
	if(fromWhere == "phoneSearch")
	{
		if(document.getElementById('phoneString').value.replace(/ /g,"") == "") return false;

		return OpenPhoneSearch();

	}
	else if(fromWhere == "advSearch")
	{

		if(document.getElementById('txtQuery').value.replace(/ /g,"") == "") return false;

		return GoAndSearch();
	
	}
	}
}