function hideControl(control)
{
    control.hide("slow");
	control.innerHTML = "";
}

function showControl(control)
{
    control.show("slow");
}

function validateFormat(e,mode){
	e = window.event || e;
	key = (document.all) ? e.keyCode : e.which;
	if (key == 8 ) return true;
	
	if (mode=='a'){
		pattern = /[A-Z\sa-z\s0-9]/
	}
	else if(mode=='c'){
		pattern = /[A-Z\sa-z]/
	}
	else if(mode=='n'){
		pattern = /\d/
	}
	//pattern = (mode=='c') ? /[A-Z\sa-zs]/ : /\d/;
	te = String.fromCharCode(key);
	return pattern.test(te);
}