function glbValidateForm(form) {
	var formArr = new Array();
	for(var i = 0; i < form.elements.length; i++) {
		objElement = form.elements[i];
		valid = objElement.getAttribute("valid");
		if (valid == "m" && objElement.value == "") {
			glbDisplayError(objElement);
			objElement.focus();
			return false;
		}

		if ( valid == "m") {
			error = objElement.getAttribute("error");
			if (error == "Origin City" || error == "Destination City") {
				formArr[formArr.length] = objElement;
			}
		}
	}
	if (formArr.length == 2) {
		
		if (formArr[0].value == formArr[1].value) {
			
			alert("Origin city and destination city should not be same");
			return false;
		}
	}
	return true;
}

function glbDisplayError(objElement) {
	
	if (objElement.type == "text") {
		alert("Please enter "+objElement.getAttribute("error"));
	}
	if (objElement.type.match(/^select/gi)) {
		alert("Please select "+objElement.getAttribute("error"));
	}
}