function changepw(){
	
	var ch_pw = document.getElementById('ch_pw');

	var p0 = document.getElementById('p0');
	var p1 = document.getElementById('p1');
	var p2 = document.getElementById('p2');
	
	if (ch_pw.checked == true){
		if(p0)
			p0.disabled = false;
		p1.disabled = false;
		p2.disabled = false;
	} else {
		if(p0)
			p0.disabled = true;
		p1.disabled = true;
		p2.disabled = true;	
	}
}

function trimL(field, maxlimit) {
if (field.value.length > maxlimit)
	field.value = field.value.substring(0, maxlimit);
}