function validateSearchString() {
	
	if(isBlank("searchTerm") ) {
 		document.getElementById("searchError").innerHTML = "Please enter a search term.";
		return false;
 	}
 	return true;

}

function isBlank(elementId){
	if(trim(document.getElementById(elementId).value)=="" ) {
		return true;
 	}
	
	return false;
	
}