function chkall(formNo,thisID) {
	if (document.getElementById(thisID).checked == true) {
		for (var i=0; i<document.forms[formNo].elements.length; i++) {
			if( document.forms[formNo].elements[i].type == 'checkbox' ){
				document.forms[formNo].elements[i].checked = true;
			}
		}
	} else {
		for (var i=0; i<document.forms[formNo].elements.length; i++) {
			if( document.forms[formNo].elements[i].type == 'checkbox' ){
				document.forms[formNo].elements[i].checked = false;
			}
		}
	}
}