// Check All Checkboxes
	function CheckAll(parentBox,childName){
		for (i = 0; i < document.form.elements.length; i++) { 
			if ( (document.form.elements[i].name.substring(0,childName.length) == childName) && (document.form.elements[i].type == 'checkbox') ) { 
        		if (parentBox.checked == true) document.form.elements[i].checked = true; 
        		else document.form.elements[i].checked = false; 
			} 
		} 
	}