function checkAll(){
	var allval = document.crimeTypes.allbox.checked;
	var total = document.crimeTypes.elements.length;
	
	for (var i=0; i<total; i++) {
		if(document.crimeTypes.elements[i].name == "options[]"){
			document.crimeTypes.elements[i].checked = allval;
		}
	}
}