function checkval()
{
var varfail="";
var fl=0;
    if(document.log.user.value=="")
	{
		varfail="Enter User name";
		fl=1;
	}
   if(document.log.pass.value=="")
	{
		varfail=varfail + "\n" + "Enter Password";
		fl=1;
	}
	if(fl)
	{
    		alert(varfail);
		return false;
	}
	else
	{
		return true;
	}
}

function clearData(box) {
if(box=='User Name' || box=='Password') {
document.getElementById(box).value=""; }
}