function trim(sString){
		while (sString.substring(0,1) == ' '){
			sString = sString.substring(1, sString.length);
		}
		while (sString.substring(sString.length-1, sString.length) == ' '){
			sString = sString.substring(0,sString.length-1);
		}
		return sString;
		}

function clearText(thefield){
		if (thefield.defaultValue==thefield.value)
		thefield.value = ""
		} 
		
function checkForBlank(thefield){
		if (trim(thefield.value)=="")
		thefield.value = thefield.defaultValue
		}