function validemail(a) {
	if(a=="") {
		return false;
	}
	var exp=/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z]+$/;
	return exp.test(a);
}

function checkempty(oForm) {
	var term = ''+document.getElementById('term').value;



	if (term == '') {
		alert("Search String Can't be empty")
		return false;
	} else {
		oForm.submit();
	}
}


function checkfocus()
{
document.getElementById('searchfield').value =""
}