function validate() {
	//CLEAR ALL
	document.getElementById('err1').className = '';
	document.getElementById('err2').className = '';
	document.getElementById('err3').className = '';
	document.getElementById('err4').className = '';
	document.getElementById('err5').className = '';
	document.getElementById('err6').className = '';
	document.getElementById('err7').className = '';
	
	err = "";
	errMsg = "";
	
	document.getElementById('Msg').style.padding = "0px";
	document.getElementById('Msg').innerHTML = "";
	
	//SET ALL INFO
	vLocationtype = document.getElementById('location_type'); vLocationtype = vLocationtype.options[vLocationtype.selectedIndex].value;
	vCause = document.getElementById('cause'); vCause = vCause.options[vCause.selectedIndex].value;
		
	if(document.getElementById('observation_date').value == "") { document.getElementById('err1').className = 'err_cell'; err = "1"; errMsg += "<li>Date must be entered"; }
	if(document.getElementById('observation_time').value == "") { document.getElementById('err2').className = 'err_cell'; err = "1"; errMsg += "<li>Time must be entered"; }
	if(document.getElementById('frequency').value == "") { document.getElementById('err3').className = 'err_cell'; err = "1"; errMsg += "<li>Please enter the frequency of observation"; }
	if(document.getElementById('location').value == "") { document.getElementById('err4').className = 'err_cell'; err = "1"; errMsg += "<li>Please enter a location or address of observation"; }
	
	if(vLocationtype == "") { document.getElementById('err5').className = 'err_cell'; err = "1"; errMsg += "<li>Location must be selected";}
	if(vCause == "") { document.getElementById('err6').className = 'err_cell'; err = "1"; errMsg += "<li>Casue of waste must be selected";}
	
	if(document.getElementById('comments').value == "") { document.getElementById('err7').className = 'err_cell'; err = "1"; errMsg += "<li>Please enter a comment"; }
	
	if(err != "") {	
		document.getElementById('Msg').style.padding = "10px";
		document.getElementById('Msg').innerHTML = "Error occurred. Please verify the highlighted fields.<ul style=\"font-size:10px;\">"+errMsg+"</ul>";
		//alert('failed');
		return false;
	}
	return confirm('Are you sure you want to submit this notification?');

}