function toggle(name){
	if(document.getElementById(name).style.display=="block"){
		document.getElementById(name).style.display="none";
	}else{
		document.getElementById(name).style.display="block";
	}
}

function validate_field(field,alerttxt) {
	with (field) {
		if (value==null||value=="") {
			alert(alerttxt);
			style.background="#ffcccc"
			focus()
			return false
		} else {
			return true
		}
	}
}