var isAllChecked = true;
	function CheckAll(field) {
		if (isAllChecked == true){
			isAllChecked = false;
		} else {
			isAllChecked = true;
		}
//		for (var i = 0; i < document.myForm.elements.length; i++) {
//			if( document.myForm.elements[i].type == 'checkbox' ) {
//					document.myForm.elements[i].checked = isAllChecked;
//			}
//		}
		for (i = 0; i < field.length; i++){
			field[i].checked = isAllChecked ;
		}
	}
	
	function CheckRow(field){
		var object = field;
		var checkBoxObj = object.getElementsByTagName("input")[0];
		
		if (checkBoxObj.checked === true)
		{
			checkBoxObj.checked = false;
		}
		else
		{
			checkBoxObj.checked = true;
		}
			
	}