Validate space in Java Script

function trim() {

ogg =document.getElementById('testid').value;

ogg1 = /\S+/.test(ogg);

//return /\S+/.test(ogg);

if(ogg1==" "){alert('blank');}

else{alert(ogg1);}

}

end script

input type="text" onblur="trim();" id="testid"