function al_c(form_name,column_name,txt){
		if(!eval(form_name+"."+column_name+".value")){
			alert(txt);
			eval(form_name+"."+column_name+".focus();");
			return true;
		}
		else{
			return false;
		}
}

function al_c2(form_name,column_name,txt){
		if(!eval(form_name+"."+column_name+".value")){
			alert(txt);
			return true;
		}
		else{
			return false;
		}
}