/*
	Commonly used javascript functions here
*/

// this function makes sure a field contains a money value
function make_money(field) {
	if(isNaN(field.value) || (field.value == "") || (field.value < 0)) {
		field.value = "0.00";
	}
	else {
		val = Math.round(field.value * 100) / 100;
		val += "";
		dot = val.indexOf(".");
		if(dot < 0) {
			val += ".00";
		}
		else if((val.length - dot) == 2) {
			val += "0";
		}
		field.value = val;
	}
}