`

Validate number only input

阅读更多
        var returnValue = true;
        var zip_code = $('#edit-zipcode').attr('value');
        if(zip_code.length > 5) {
            returnValue = false;
            $('#edit-zipcode').addClass('error');
        }else if(zip_code.length >0){
			for(var i=0; i<zip_code.length; i++) {
				var key = zip_code.charAt(i);
				if(((key < "0")||(key > "9"))&&!(key == "")) {
	                returnValue = false;
	                $('#edit-zipcode').addClass('error');
	                break;
				}
			}
        }
        return returnValue;
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